diff --git a/Telegram/SourceFiles/boxes/auto_download_box.cpp b/Telegram/SourceFiles/boxes/auto_download_box.cpp
index ae42f3cc8..3617a9eb6 100644
--- a/Telegram/SourceFiles/boxes/auto_download_box.cpp
+++ b/Telegram/SourceFiles/boxes/auto_download_box.cpp
@@ -162,7 +162,7 @@ void AutoDownloadBox::setupContent() {
 			*downloadValues,
 			*autoPlayValues);
 		auto allowMore = values | ranges::views::filter([&](Pair pair) {
-			const auto [type, enabled] = pair;
+			const auto &[type, enabled] = pair;
 			const auto value = enabled ? limitByType(type) : 0;
 			const auto old = settings->bytesLimit(_source, type);
 			return (old < value);
@@ -170,7 +170,7 @@ void AutoDownloadBox::setupContent() {
 			return pair.first;
 		});
 		const auto less = ranges::any_of(*autoPlayValues, [&](Pair pair) {
-			const auto [type, enabled] = pair;
+			const auto &[type, enabled] = pair;
 			const auto value = enabled ? limitByType(type) : 0;
 			return value < settings->bytesLimit(_source, type);
 		});
@@ -179,7 +179,7 @@ void AutoDownloadBox::setupContent() {
 			allowMore.end());
 
 		const auto changed = ranges::any_of(values, [&](Pair pair) {
-			const auto [type, enabled] = pair;
+			const auto &[type, enabled] = pair;
 			const auto value = enabled ? limitByType(type) : 0;
 			return value != settings->bytesLimit(_source, type);
 		});
diff --git a/Telegram/SourceFiles/boxes/connection_box.cpp b/Telegram/SourceFiles/boxes/connection_box.cpp
index 3bdaa932d..4403f56fa 100644
--- a/Telegram/SourceFiles/boxes/connection_box.cpp
+++ b/Telegram/SourceFiles/boxes/connection_box.cpp
@@ -748,7 +748,7 @@ void ProxiesBox::applyView(View &&view) {
 		const auto wrap = _wrap
 			? _wrap.data()
 			: _initialWrap.data();
-		const auto [i, ok] = _rows.emplace(id, nullptr);
+		const auto &[i, ok] = _rows.emplace(id, nullptr);
 		i->second.reset(wrap->insert(
 			0,
 			object_ptr<ProxyRow>(
diff --git a/Telegram/SourceFiles/boxes/language_box.cpp b/Telegram/SourceFiles/boxes/language_box.cpp
index ab709a87d..aa69a6fee 100644
--- a/Telegram/SourceFiles/boxes/language_box.cpp
+++ b/Telegram/SourceFiles/boxes/language_box.cpp
@@ -1121,7 +1121,7 @@ void LanguageBox::prepare() {
 
 	using namespace rpl::mappers;
 
-	const auto [recent, official] = PrepareLists();
+	const auto &[recent, official] = PrepareLists();
 	const auto inner = setInnerWidget(
 		object_ptr<Content>(this, recent, official),
 		st::boxScroll,
diff --git a/Telegram/SourceFiles/boxes/share_box.cpp b/Telegram/SourceFiles/boxes/share_box.cpp
index d1b3dbb37..007355317 100644
--- a/Telegram/SourceFiles/boxes/share_box.cpp
+++ b/Telegram/SourceFiles/boxes/share_box.cpp
@@ -882,7 +882,7 @@ auto ShareBox::Inner::getChat(not_null<Dialogs::Row*> row)
 		row->attached = i->second.get();
 		return i->second.get();
 	}
-	const auto [i, ok] = _dataMap.emplace(
+	const auto &[i, ok] = _dataMap.emplace(
 		peer,
 		std::make_unique<Chat>(peer, _st.item, [=] { repaintChat(peer); }));
 	updateChatName(i->second.get());
diff --git a/Telegram/SourceFiles/calls/group/calls_group_call.cpp b/Telegram/SourceFiles/calls/group/calls_group_call.cpp
index 49dd3db91..5ec38443d 100644
--- a/Telegram/SourceFiles/calls/group/calls_group_call.cpp
+++ b/Telegram/SourceFiles/calls/group/calls_group_call.cpp
@@ -3013,7 +3013,7 @@ void GroupCall::checkLastSpoke() {
 	const auto now = crl::now();
 	auto list = base::take(_lastSpoke);
 	for (auto i = list.begin(); i != list.end();) {
-		const auto [ssrc, when] = *i;
+		const auto &[ssrc, when] = *i;
 		if (when.anything + kKeepInListFor >= now) {
 			hasRecent = true;
 			++i;
diff --git a/Telegram/SourceFiles/chat_helpers/emoji_sets_manager.cpp b/Telegram/SourceFiles/chat_helpers/emoji_sets_manager.cpp
index 7c6ae96c8..fed24fc5b 100644
--- a/Telegram/SourceFiles/chat_helpers/emoji_sets_manager.cpp
+++ b/Telegram/SourceFiles/chat_helpers/emoji_sets_manager.cpp
@@ -247,7 +247,7 @@ void Row::paintPreview(QPainter &p) const {
 	const auto width = st::manageEmojiPreviewWidth;
 	const auto height = st::manageEmojiPreviewWidth;
 	auto &&preview = ranges::views::zip(_preview, ranges::views::ints(0, int(_preview.size())));
-	for (const auto [pixmap, index] : preview) {
+	for (const auto &[pixmap, index] : preview) {
 		const auto row = (index / 2);
 		const auto column = (index % 2);
 		const auto left = x + (column ? width - st::manageEmojiPreview : 0);
diff --git a/Telegram/SourceFiles/core/core_cloud_password.cpp b/Telegram/SourceFiles/core/core_cloud_password.cpp
index 99b5d589e..3a65f24d5 100644
--- a/Telegram/SourceFiles/core/core_cloud_password.cpp
+++ b/Telegram/SourceFiles/core/core_cloud_password.cpp
@@ -128,7 +128,7 @@ CloudPasswordResult ComputeCheck(
 		}
 	};
 
-	const auto [a, AForHash, u] = GenerateAndCheckRandom();
+	const auto &[a, AForHash, u] = GenerateAndCheckRandom();
 	const auto g_b = BigNum::ModSub(B, kg_x, p, context);
 	if (!MTP::IsGoodModExpFirst(g_b, p)) {
 		LOG(("API Error: Bad g_b in cloud password check!"));
diff --git a/Telegram/SourceFiles/core/shortcuts.cpp b/Telegram/SourceFiles/core/shortcuts.cpp
index 2d10ad484..ad4a79eb7 100644
--- a/Telegram/SourceFiles/core/shortcuts.cpp
+++ b/Telegram/SourceFiles/core/shortcuts.cpp
@@ -402,7 +402,7 @@ void Manager::fillDefaults() {
 		kShowFolder,
 		ranges::views::ints(1, ranges::unreachable));
 
-	for (const auto [command, index] : folders) {
+	for (const auto &[command, index] : folders) {
 		set(u"%1+%2"_q.arg(ctrl).arg(index), command);
 	}
 
@@ -410,7 +410,7 @@ void Manager::fillDefaults() {
 		kShowAccount,
 		ranges::views::ints(1, ranges::unreachable));
 
-	for (const auto [command, index] : accounts) {
+	for (const auto &[command, index] : accounts) {
 		set(u"%1+shift+%2"_q.arg(ctrl).arg(index), command);
 	}
 
diff --git a/Telegram/SourceFiles/data/data_changes.cpp b/Telegram/SourceFiles/data/data_changes.cpp
index f20041565..773c50d5d 100644
--- a/Telegram/SourceFiles/data/data_changes.cpp
+++ b/Telegram/SourceFiles/data/data_changes.cpp
@@ -56,7 +56,7 @@ rpl::producer<UpdateType> Changes::Manager<DataType, UpdateType>::updates(
 		Flags flags) const {
 	return _stream.events(
 	) | rpl::filter([=](const UpdateType &update) {
-		const auto [updateData, updateFlags] = update;
+		const auto &[updateData, updateFlags] = update;
 		return (updateData == data) && (updateFlags & flags);
 	});
 }
diff --git a/Telegram/SourceFiles/data/data_group_call.cpp b/Telegram/SourceFiles/data/data_group_call.cpp
index 0567477c4..72b4d387f 100644
--- a/Telegram/SourceFiles/data/data_group_call.cpp
+++ b/Telegram/SourceFiles/data/data_group_call.cpp
@@ -847,7 +847,7 @@ void GroupCall::requestUnknownParticipants() {
 		auto result = base::flat_map<uint32, LastSpokeTimes>();
 		result.reserve(kRequestPerPage);
 		while (result.size() < kRequestPerPage) {
-			const auto [ssrc, when] = _unknownSpokenSsrcs.back();
+			const auto &[ssrc, when] = _unknownSpokenSsrcs.back();
 			result.emplace(ssrc, when);
 			_unknownSpokenSsrcs.erase(_unknownSpokenSsrcs.end() - 1);
 		}
@@ -863,7 +863,7 @@ void GroupCall::requestUnknownParticipants() {
 			result.reserve(available);
 			while (result.size() < available) {
 				const auto &back = _unknownSpokenPeerIds.back();
-				const auto [participantPeerId, when] = back;
+				const auto &[participantPeerId, when] = back;
 				result.emplace(participantPeerId, when);
 				_unknownSpokenPeerIds.erase(_unknownSpokenPeerIds.end() - 1);
 			}
diff --git a/Telegram/SourceFiles/data/data_histories.cpp b/Telegram/SourceFiles/data/data_histories.cpp
index dd5b435ee..b171cf0f4 100644
--- a/Telegram/SourceFiles/data/data_histories.cpp
+++ b/Telegram/SourceFiles/data/data_histories.cpp
@@ -123,7 +123,7 @@ not_null<History*> Histories::findOrCreate(PeerId peerId) {
 	if (const auto result = find(peerId)) {
 		return result;
 	}
-	const auto [i, ok] = _map.emplace(
+	const auto &[i, ok] = _map.emplace(
 		peerId,
 		std::make_unique<History>(&owner(), peerId));
 	return i->second.get();
@@ -355,7 +355,7 @@ void Histories::requestDialogEntry(
 		return;
 	}
 
-	const auto [j, ok] = _dialogRequestsPending.try_emplace(history);
+	const auto &[j, ok] = _dialogRequestsPending.try_emplace(history);
 	if (callback) {
 		j->second.push_back(std::move(callback));
 	}
@@ -1130,7 +1130,7 @@ void Histories::finishSentRequest(
 	if (state->postponedRequestEntry && !postponeEntryRequest(*state)) {
 		const auto i = _dialogRequests.find(history);
 		Assert(i != end(_dialogRequests));
-		const auto [j, ok] = _dialogRequestsPending.emplace(
+		const auto &[j, ok] = _dialogRequestsPending.emplace(
 			history,
 			std::move(i->second));
 		Assert(ok);
diff --git a/Telegram/SourceFiles/data/data_session.cpp b/Telegram/SourceFiles/data/data_session.cpp
index 6001a46c2..de0a3c62d 100644
--- a/Telegram/SourceFiles/data/data_session.cpp
+++ b/Telegram/SourceFiles/data/data_session.cpp
@@ -1097,7 +1097,7 @@ void Session::watchForOffline(not_null<UserData*> user, TimeId now) {
 		return;
 	}
 	const auto till = user->onlineTill;
-	const auto [i, ok] = _watchingForOffline.emplace(user, till);
+	const auto &[i, ok] = _watchingForOffline.emplace(user, till);
 	if (!ok) {
 		if (i->second == till) {
 			return;
@@ -1626,7 +1626,7 @@ HistoryItem *Session::changeMessageId(PeerId peerId, MsgId wasId, MsgId nowId) {
 	}
 	const auto item = i->second;
 	list->erase(i);
-	const auto [j, ok] = list->emplace(nowId, item);
+	const auto &[j, ok] = list->emplace(nowId, item);
 
 	if (!peerIsChannel(peerId)) {
 		if (IsServerMsgId(wasId)) {
@@ -1789,7 +1789,7 @@ void Session::registerHighlightProcess(
 		not_null<HistoryItem*> item) {
 	Expects(item->inHighlightProcess());
 
-	const auto [i, ok] = _highlightings.emplace(processId, item);
+	const auto &[i, ok] = _highlightings.emplace(processId, item);
 
 	Ensures(ok);
 }
@@ -4208,7 +4208,7 @@ not_null<Folder*> Session::folder(FolderId id) {
 	if (const auto result = folderLoaded(id)) {
 		return result;
 	}
-	const auto [it, ok] = _folders.emplace(
+	const auto &[it, ok] = _folders.emplace(
 		id,
 		std::make_unique<Folder>(this, id));
 	return it->second.get();
diff --git a/Telegram/SourceFiles/data/data_stories.cpp b/Telegram/SourceFiles/data/data_stories.cpp
index abf9227fd..a35279be4 100644
--- a/Telegram/SourceFiles/data/data_stories.cpp
+++ b/Telegram/SourceFiles/data/data_stories.cpp
@@ -234,7 +234,7 @@ Story *Stories::applySingle(PeerId peerId, const MTPstoryItem &story) {
 void Stories::requestPeerStories(
 		not_null<PeerData*> peer,
 		Fn<void()> done) {
-	const auto [i, ok] = _requestingPeerStories.emplace(peer);
+	const auto &[i, ok] = _requestingPeerStories.emplace(peer);
 	if (done) {
 		i->second.push_back(std::move(done));
 	}
diff --git a/Telegram/SourceFiles/dialogs/dialogs_inner_widget.cpp b/Telegram/SourceFiles/dialogs/dialogs_inner_widget.cpp
index d7d17a37c..05e54ec6b 100644
--- a/Telegram/SourceFiles/dialogs/dialogs_inner_widget.cpp
+++ b/Telegram/SourceFiles/dialogs/dialogs_inner_widget.cpp
@@ -2458,7 +2458,7 @@ void InnerWidget::appendToFiltered(Key key) {
 	}
 	auto row = std::make_unique<Row>(key, 0, 0);
 	row->recountHeight(_narrowRatio);
-	const auto [i, ok] = _filterResultsGlobal.emplace(key, std::move(row));
+	const auto &[i, ok] = _filterResultsGlobal.emplace(key, std::move(row));
 	const auto height = filteredHeight();
 	_filterResults.emplace_back(i->second.get());
 	_filterResults.back().top = height;
@@ -3913,7 +3913,7 @@ void InnerWidget::setupShortcuts() {
 			auto &&folders = ranges::views::zip(
 				Shortcuts::kShowFolder,
 				ranges::views::ints(0, ranges::unreachable));
-			for (const auto [command, index] : folders) {
+			for (const auto &[command, index] : folders) {
 				const auto select = (command == Command::ShowFolderLast)
 					? (filtersCount - 1)
 					: std::clamp(index, 0, filtersCount - 1);
@@ -3940,7 +3940,7 @@ void InnerWidget::setupShortcuts() {
 		auto &&pinned = ranges::views::zip(
 			kPinned,
 			ranges::views::ints(0, ranges::unreachable));
-		for (const auto [command, index] : pinned) {
+		for (const auto &[command, index] : pinned) {
 			request->check(command) && request->handle([=, index = index] {
 				const auto list = (_filterId
 					? session().data().chatsFilters().chatsList(_filterId)
diff --git a/Telegram/SourceFiles/editor/editor_crop.cpp b/Telegram/SourceFiles/editor/editor_crop.cpp
index 78a91aa6a..54f8369c2 100644
--- a/Telegram/SourceFiles/editor/editor_crop.cpp
+++ b/Telegram/SourceFiles/editor/editor_crop.cpp
@@ -212,8 +212,8 @@ void Crop::computeDownState(const QPoint &p) {
 	const auto edge = mouseState(p);
 	const auto &inner = _innerRect;
 	const auto &crop = _cropPaint;
-	const auto [iLeft, iTop, iRight, iBottom] = RectEdges(inner);
-	const auto [cLeft, cTop, cRight, cBottom] = RectEdges(crop);
+	const auto &[iLeft, iTop, iRight, iBottom] = RectEdges(inner);
+	const auto &[cLeft, cTop, cRight, cBottom] = RectEdges(crop);
 	_down = InfoAtDown{
 		.rect = crop,
 		.edge = edge,
diff --git a/Telegram/SourceFiles/export/export_api_wrap.cpp b/Telegram/SourceFiles/export/export_api_wrap.cpp
index 25fe29a71..b23329c03 100644
--- a/Telegram/SourceFiles/export/export_api_wrap.cpp
+++ b/Telegram/SourceFiles/export/export_api_wrap.cpp
@@ -1553,7 +1553,7 @@ void ApiWrap::appendChatsSlice(
 				continue;
 			}
 		}
-		const auto [i, ok] = process.indexByPeer.emplace(
+		const auto &[i, ok] = process.indexByPeer.emplace(
 			info.peerId,
 			nextIndex);
 		if (ok) {
diff --git a/Telegram/SourceFiles/export/output/export_output_html.cpp b/Telegram/SourceFiles/export/output/export_output_html.cpp
index 3f0b03eaf..c543de8a5 100644
--- a/Telegram/SourceFiles/export/output/export_output_html.cpp
+++ b/Telegram/SourceFiles/export/output/export_output_html.cpp
@@ -1563,7 +1563,7 @@ QByteArray HtmlWriter::Wrap::pushStickerMedia(
 		const QString &basePath) {
 	using namespace Data;
 
-	const auto [thumb, size] = WriteImageThumb(
+	const auto &[thumb, size] = WriteImageThumb(
 		basePath,
 		data.file.relativePath,
 		CalculateThumbSize(
@@ -1730,7 +1730,7 @@ QByteArray HtmlWriter::Wrap::pushPhotoMedia(
 		const QString &basePath) {
 	using namespace Data;
 
-	const auto [thumb, size] = WriteImageThumb(
+	const auto &[thumb, size] = WriteImageThumb(
 		basePath,
 		data.image.file.relativePath,
 		CalculateThumbSize(
@@ -2790,7 +2790,7 @@ Result HtmlWriter::writeDialogSlice(const Data::MessagesSlice &data) {
 				_settings.path,
 				FormatDateText(date)));
 		}
-		const auto [info, content] = _chat->pushMessage(
+		const auto &[info, content] = _chat->pushMessage(
 			message,
 			previous,
 			_dialog,
diff --git a/Telegram/SourceFiles/history/history.cpp b/Telegram/SourceFiles/history/history.cpp
index bdc0d659c..f5a9765c0 100644
--- a/Telegram/SourceFiles/history/history.cpp
+++ b/Telegram/SourceFiles/history/history.cpp
@@ -465,7 +465,7 @@ not_null<HistoryItem*> History::insertItem(
 		std::unique_ptr<HistoryItem> item) {
 	Expects(item != nullptr);
 
-	const auto [i, ok] = _messages.insert(std::move(item));
+	const auto &[i, ok] = _messages.insert(std::move(item));
 
 	const auto result = i->get();
 	owner().registerMessage(result);
diff --git a/Telegram/SourceFiles/history/history_inner_widget.cpp b/Telegram/SourceFiles/history/history_inner_widget.cpp
index c824976cf..9cf3ab373 100644
--- a/Telegram/SourceFiles/history/history_inner_widget.cpp
+++ b/Telegram/SourceFiles/history/history_inner_widget.cpp
@@ -1992,7 +1992,7 @@ void HistoryInner::mouseActionFinish(
 		&& !_selected.empty()
 		&& _selected.cbegin()->second != FullSelection
 		&& !hasCopyRestriction(_selected.cbegin()->first)) {
-		const auto [item, selection] = *_selected.cbegin();
+		const auto &[item, selection] = *_selected.cbegin();
 		if (const auto view = viewByItem(item)) {
 			TextUtilities::SetClipboardText(
 				view->selectedText(selection),
@@ -2925,7 +2925,7 @@ TextForMimeData HistoryInner::getSelectedText() const {
 		return TextForMimeData();
 	}
 	if (selected.cbegin()->second != FullSelection) {
-		const auto [item, selection] = *selected.cbegin();
+		const auto &[item, selection] = *selected.cbegin();
 		if (const auto view = viewByItem(item)) {
 			return view->selectedText(selection);
 		}
diff --git a/Telegram/SourceFiles/history/view/history_view_list_widget.cpp b/Telegram/SourceFiles/history/view/history_view_list_widget.cpp
index 984cc0e79..6dcc3497f 100644
--- a/Telegram/SourceFiles/history/view/history_view_list_widget.cpp
+++ b/Telegram/SourceFiles/history/view/history_view_list_widget.cpp
@@ -901,7 +901,7 @@ not_null<Element*> ListWidget::enforceViewForItem(
 			return j->second.get();
 		}
 	}
-	const auto [i, ok] = _views.emplace(
+	const auto &[i, ok] = _views.emplace(
 		item,
 		item->createView(this));
 	return i->second.get();
@@ -1094,7 +1094,7 @@ void ListWidget::repaintScrollDateCallback() {
 
 auto ListWidget::collectSelectedItems() const -> SelectedItems {
 	auto transformation = [&](const auto &item) {
-		const auto [itemId, selection] = item;
+		const auto &[itemId, selection] = item;
 		auto result = SelectedItem(itemId);
 		result.canDelete = selection.canDelete;
 		result.canForward = selection.canForward;
@@ -3766,7 +3766,7 @@ void ListWidget::refreshItem(not_null<const Element*> view) {
 			}
 			return nullptr;
 		}();
-		const auto [i, ok] = _views.emplace(
+		const auto &[i, ok] = _views.emplace(
 			item,
 			item->createView(this, was.get()));
 		const auto now = i->second.get();
diff --git a/Telegram/SourceFiles/history/view/media/history_view_poll.cpp b/Telegram/SourceFiles/history/view/media/history_view_poll.cpp
index c08d8fde5..7e96e068f 100644
--- a/Telegram/SourceFiles/history/view/media/history_view_poll.cpp
+++ b/Telegram/SourceFiles/history/view/media/history_view_poll.cpp
@@ -761,7 +761,7 @@ void Poll::draw(Painter &p, const PaintContext &context) const {
 	auto &&answers = ranges::views::zip(
 		_answers,
 		ranges::views::ints(0, int(_answers.size())));
-	for (const auto [answer, index] : answers) {
+	for (const auto &[answer, index] : answers) {
 		const auto animation = _answersAnimation
 			? &_answersAnimation->data[index]
 			: nullptr;
diff --git a/Telegram/SourceFiles/info/media/info_media_common.cpp b/Telegram/SourceFiles/info/media/info_media_common.cpp
index fde5dd01b..23fba5eec 100644
--- a/Telegram/SourceFiles/info/media/info_media_common.cpp
+++ b/Telegram/SourceFiles/info/media/info_media_common.cpp
@@ -39,7 +39,7 @@ bool ChangeItemSelection(
 		return false;
 	};
 	if (selected.size() < MaxSelectedItems) {
-		const auto [i, ok] = selected.try_emplace(item, selectionData);
+		const auto &[i, ok] = selected.try_emplace(item, selectionData);
 		if (ok) {
 			return true;
 		}
diff --git a/Telegram/SourceFiles/media/view/media_view_overlay_widget.cpp b/Telegram/SourceFiles/media/view/media_view_overlay_widget.cpp
index c533fd805..3bbc98fb9 100644
--- a/Telegram/SourceFiles/media/view/media_view_overlay_widget.cpp
+++ b/Telegram/SourceFiles/media/view/media_view_overlay_widget.cpp
@@ -1720,7 +1720,7 @@ bool OverlayWidget::stateAnimationCallback(crl::time now) {
 		now += st::mediaviewShowDuration + st::mediaviewHideDuration;
 	}
 	for (auto i = begin(_animations); i != end(_animations);) {
-		const auto [state, started] = *i;
+		const auto &[state, started] = *i;
 		updateOverRect(state);
 		const auto dt = float64(now - started) / st::mediaviewFadeDuration;
 		if (dt >= 1) {
@@ -5494,12 +5494,12 @@ void OverlayWidget::preloadData(int delta) {
 	for (auto index = from; index != till + 1; ++index) {
 		auto entity = entityByIndex(index);
 		if (auto photo = std::get_if<not_null<PhotoData*>>(&entity.data)) {
-			const auto [i, ok] = photos.emplace((*photo)->createMediaView());
+			const auto &[i, ok] = photos.emplace((*photo)->createMediaView());
 			(*i)->wanted(Data::PhotoSize::Small, fileOrigin(entity));
 			(*photo)->load(fileOrigin(entity), LoadFromCloudOrLocal, true);
 		} else if (auto document = std::get_if<not_null<DocumentData*>>(
 				&entity.data)) {
-			const auto [i, ok] = documents.emplace(
+			const auto &[i, ok] = documents.emplace(
 				(*document)->createMediaView());
 			(*i)->thumbnailWanted(fileOrigin(entity));
 			if (!(*i)->canBePlayed(entity.item)) {
diff --git a/Telegram/SourceFiles/mtproto/dedicated_file_loader.cpp b/Telegram/SourceFiles/mtproto/dedicated_file_loader.cpp
index 676aa047c..850d5c6c1 100644
--- a/Telegram/SourceFiles/mtproto/dedicated_file_loader.cpp
+++ b/Telegram/SourceFiles/mtproto/dedicated_file_loader.cpp
@@ -453,7 +453,7 @@ void StartDedicatedLoader(
 		ready(nullptr);
 	};
 
-	const auto [username, postId] = location;
+	const auto &[username, postId] = location;
 	ResolveChannel(mtp, username, [=, postId = postId](
 			const MTPInputChannel &channel) {
 		mtp->send(
diff --git a/Telegram/SourceFiles/passport/passport_form_controller.cpp b/Telegram/SourceFiles/passport/passport_form_controller.cpp
index cf9f4c775..684163163 100644
--- a/Telegram/SourceFiles/passport/passport_form_controller.cpp
+++ b/Telegram/SourceFiles/passport/passport_form_controller.cpp
@@ -1791,7 +1791,7 @@ void FormController::loadFile(File &file) {
 		return;
 	}
 	file.downloadStatus.set(LoadStatus::Status::InProgress, 0);
-	const auto [j, ok] = _fileLoaders.emplace(
+	const auto &[j, ok] = _fileLoaders.emplace(
 		key,
 		std::make_unique<mtpFileLoader>(
 			&_controller->session(),
@@ -1823,7 +1823,7 @@ void FormController::loadFile(File &file) {
 }
 
 void FormController::fileLoadDone(FileKey key, const QByteArray &bytes) {
-	if (const auto [value, file] = findFile(key); file != nullptr) {
+	if (const auto &[value, file] = findFile(key); file != nullptr) {
 		const auto decrypted = DecryptData(
 			bytes::make_span(bytes),
 			file->hash,
@@ -1843,7 +1843,7 @@ void FormController::fileLoadDone(FileKey key, const QByteArray &bytes) {
 }
 
 void FormController::fileLoadProgress(FileKey key, int offset) {
-	if (const auto [value, file] = findFile(key); file != nullptr) {
+	if (const auto &[value, file] = findFile(key); file != nullptr) {
 		file->downloadStatus.set(LoadStatus::Status::InProgress, offset);
 		if (const auto fileInEdit = findEditFile(key)) {
 			fileInEdit->fields.downloadStatus = file->downloadStatus;
@@ -1853,7 +1853,7 @@ void FormController::fileLoadProgress(FileKey key, int offset) {
 }
 
 void FormController::fileLoadFail(FileKey key) {
-	if (const auto [value, file] = findFile(key); file != nullptr) {
+	if (const auto &[value, file] = findFile(key); file != nullptr) {
 		file->downloadStatus.set(LoadStatus::Status::Failed);
 		if (const auto fileInEdit = findEditFile(key)) {
 			fileInEdit->fields.downloadStatus = file->downloadStatus;
@@ -2591,7 +2591,7 @@ bool FormController::parseForm(const MTPaccount_AuthorizationForm &result) {
 		const auto row = CollectRequestedRow(required);
 		for (const auto &requested : row.values) {
 			const auto type = requested.type;
-			const auto [i, ok] = _form.values.emplace(type, Value(type));
+			const auto &[i, ok] = _form.values.emplace(type, Value(type));
 			auto &value = i->second;
 			value.translationRequired = requested.translationRequired;
 			value.selfieRequired = requested.selfieRequired;
diff --git a/Telegram/SourceFiles/passport/passport_panel_edit_document.cpp b/Telegram/SourceFiles/passport/passport_panel_edit_document.cpp
index 9f71e2e3a..c3715e977 100644
--- a/Telegram/SourceFiles/passport/passport_panel_edit_document.cpp
+++ b/Telegram/SourceFiles/passport/passport_panel_edit_document.cpp
@@ -530,7 +530,7 @@ void PanelEditDocument::createDetailsRow(
 	const auto isoByPhone = Countries::Instance().countryISO2ByPhone(
 		_controller->bot()->session().user()->phone());
 
-	const auto [it, ok] = _details.emplace(
+	const auto &[it, ok] = _details.emplace(
 		i,
 		container->add(Ui::PanelDetailsRow::Create(
 			container,
diff --git a/Telegram/SourceFiles/storage/download_manager_mtproto.cpp b/Telegram/SourceFiles/storage/download_manager_mtproto.cpp
index d6752e768..77aae801b 100644
--- a/Telegram/SourceFiles/storage/download_manager_mtproto.cpp
+++ b/Telegram/SourceFiles/storage/download_manager_mtproto.cpp
@@ -804,8 +804,8 @@ void DownloadMtprotoTask::placeSentRequest(
 		dcId(),
 		requestData.sessionIndex,
 		Storage::kDownloadPartSize);
-	const auto [i, ok1] = _sentRequests.emplace(requestId, requestData);
-	const auto [j, ok2] = _requestByOffset.emplace(
+	const auto &[i, ok1] = _sentRequests.emplace(requestId, requestData);
+	const auto &[j, ok2] = _requestByOffset.emplace(
 		requestData.offset,
 		requestId);
 
diff --git a/Telegram/SourceFiles/storage/file_upload.cpp b/Telegram/SourceFiles/storage/file_upload.cpp
index f2a014f7e..72ebdaafe 100644
--- a/Telegram/SourceFiles/storage/file_upload.cpp
+++ b/Telegram/SourceFiles/storage/file_upload.cpp
@@ -359,7 +359,7 @@ void Uploader::upload(
 void Uploader::currentFailed() {
 	auto j = queue.find(uploadingId);
 	if (j != queue.end()) {
-		const auto [msgId, file] = std::move(*j);
+		const auto &[msgId, file] = std::move(*j);
 		queue.erase(j);
 		notifyFailed(msgId, file);
 	}
@@ -640,7 +640,7 @@ void Uploader::cancelAll() {
 		currentFailed();
 	}
 	while (!queue.empty()) {
-		const auto [msgId, file] = std::move(*queue.begin());
+		const auto &[msgId, file] = std::move(*queue.begin());
 		queue.erase(queue.begin());
 		notifyFailed(msgId, file);
 	}
diff --git a/Telegram/SourceFiles/ui/boxes/single_choice_box.cpp b/Telegram/SourceFiles/ui/boxes/single_choice_box.cpp
index a75d8a030..2083a0f48 100644
--- a/Telegram/SourceFiles/ui/boxes/single_choice_box.cpp
+++ b/Telegram/SourceFiles/ui/boxes/single_choice_box.cpp
@@ -29,7 +29,7 @@ void SingleChoiceBox(
 		layout,
 		st::boxOptionListPadding.top() + st::autolockButton.margin.top()));
 	auto &&ints = ranges::views::ints(0, ranges::unreachable);
-	for (const auto [i, text] : ranges::views::zip(ints, args.options)) {
+	for (const auto &[i, text] : ranges::views::zip(ints, args.options)) {
 		layout->add(
 			object_ptr<Ui::Radiobutton>(
 				layout,
diff --git a/Telegram/SourceFiles/ui/chat/attach/attach_album_thumbnail.cpp b/Telegram/SourceFiles/ui/chat/attach/attach_album_thumbnail.cpp
index 3c8f155d6..adf38109b 100644
--- a/Telegram/SourceFiles/ui/chat/attach/attach_album_thumbnail.cpp
+++ b/Telegram/SourceFiles/ui/chat/attach/attach_album_thumbnail.cpp
@@ -324,7 +324,7 @@ void AlbumThumbnail::drawSimpleFrame(QPainter &p, QRect to, QSize size) const {
 	const auto Round = [](float64 value) {
 		return int(base::SafeRound(value));
 	};
-	const auto [from, fillBlack] = [&] {
+	const auto &[from, fillBlack] = [&] {
 		if (previewWidth < width && previewHeight < height) {
 			const auto toWidth = Round(previewWidth * scaleWidth);
 			const auto toHeight = Round(previewHeight * scaleHeight);
diff --git a/Telegram/SourceFiles/ui/chat/message_bar.cpp b/Telegram/SourceFiles/ui/chat/message_bar.cpp
index 47f7056e4..c3cf6e113 100644
--- a/Telegram/SourceFiles/ui/chat/message_bar.cpp
+++ b/Telegram/SourceFiles/ui/chat/message_bar.cpp
@@ -20,7 +20,7 @@ namespace Ui {
 namespace {
 
 [[nodiscard]] int SameFirstPartLength(const QString &a, const QString &b) {
-	const auto [i, j] = ranges::mismatch(a, b);
+	const auto &[i, j] = ranges::mismatch(a, b);
 	return (i - a.begin());
 }
 
diff --git a/Telegram/SourceFiles/window/notifications_manager.cpp b/Telegram/SourceFiles/window/notifications_manager.cpp
index e0dc8d193..9ab93b934 100644
--- a/Telegram/SourceFiles/window/notifications_manager.cpp
+++ b/Telegram/SourceFiles/window/notifications_manager.cpp
@@ -309,7 +309,7 @@ System::Timing System::countTiming(
 
 void System::registerThread(not_null<Data::Thread*> thread) {
 	if (const auto topic = thread->asTopic()) {
-		const auto [i, ok] = _watchedTopics.emplace(topic, rpl::lifetime());
+		const auto &[i, ok] = _watchedTopics.emplace(topic, rpl::lifetime());
 		if (ok) {
 			topic->destroyed() | rpl::start_with_next([=] {
 				clearFromTopic(topic);
diff --git a/Telegram/SourceFiles/window/window_session_controller.cpp b/Telegram/SourceFiles/window/window_session_controller.cpp
index b4be01c6d..cd537957c 100644
--- a/Telegram/SourceFiles/window/window_session_controller.cpp
+++ b/Telegram/SourceFiles/window/window_session_controller.cpp
@@ -1243,7 +1243,7 @@ void SessionController::setupShortcuts() {
 		auto &&accounts = ranges::views::zip(
 			Shortcuts::kShowAccount,
 			ranges::views::ints(0, accountsCount));
-		for (const auto [command, index] : accounts) {
+		for (const auto &[command, index] : accounts) {
 			request->check(command) && request->handle([=] {
 				const auto list = app->domain().orderedAccounts();
 				if (index >= list.size()) {