diff --git a/lisp/rect.el b/lisp/rect.el
index 8803a47215f..13db7d8ee3d 100644
--- a/lisp/rect.el
+++ b/lisp/rect.el
@@ -284,7 +284,7 @@ With a prefix (or a FILL) argument, also fill lines where nothing has to be
 deleted.
 
 If the buffer is read-only, Emacs will beep and refrain from deleting
-the rectangle, but put it in the kill ring anyway.  This means that
+the rectangle, but put it in `killed-rectangle' anyway.  This means that
 you can use this command to copy text from a read-only buffer.
 \(If the variable `kill-read-only-ok' is non-nil, then this won't
 even beep.)"
@@ -295,7 +295,7 @@ even beep.)"
      (setq deactivate-mark t)
      (setq killed-rectangle (extract-rectangle start end))
      (if kill-read-only-ok
-	 (progn (message "Read only text copied to kill ring") nil)
+         (progn (message "Read only text copied to `killed-rectangle'") nil)
        (barf-if-buffer-read-only)
        (signal 'text-read-only (list (current-buffer)))))))
 
@@ -403,7 +403,7 @@ With a prefix (or a FILL) argument, also fill too short lines."
   :version "25.1")
 
 (defcustom rectangle-preview t
-  "If non-nil, `string-rectangle' will show an-the-fly preview."
+  "If non-nil, `string-rectangle' will show an on-the-fly preview."
   :version "25.1"
   :type 'boolean)
 
diff --git a/src/bidi.c b/src/bidi.c
index 6ea84d9c0c4..5824de54ad8 100644
--- a/src/bidi.c
+++ b/src/bidi.c
@@ -2971,15 +2971,13 @@ bidi_resolve_neutral (struct bidi_it *bidi_it)
       /* N1-N2/Retaining */
       || type == WEAK_BN)
     {
-      if (bidi_it->next_for_neutral.type != UNKNOWN_BT)
+      if (bidi_it->next_for_neutral.type != UNKNOWN_BT
+	  && (bidi_it->next_for_neutral.charpos > bidi_it->charpos
+	      /* PDI defines an eos, so it's OK for it to serve as its
+		 own next_for_neutral.  */
+	      || (bidi_it->next_for_neutral.charpos == bidi_it->charpos
+		  && bidi_it->type == PDI)))
 	{
-	  /* Make sure the data for resolving neutrals we are
-	     about to use is valid.  */
-	  eassert (bidi_it->next_for_neutral.charpos > bidi_it->charpos
-		   /* PDI defines an eos, so it's OK for it to
-		      serve as its own next_for_neutral.  */
-		   || (bidi_it->next_for_neutral.charpos == bidi_it->charpos
-		       && bidi_it->type == PDI));
 	  type = bidi_resolve_neutral_1 (bidi_it->prev_for_neutral.type,
 					 bidi_it->next_for_neutral.type,
 					 current_level);
diff --git a/src/data.c b/src/data.c
index 71da916ae74..5af590abed9 100644
--- a/src/data.c
+++ b/src/data.c
@@ -629,7 +629,12 @@ global value outside of any lexical scope.  */)
   return (EQ (valcontents, Qunbound) ? Qnil : Qt);
 }
 
-/* FIXME: Make it an alias for function-symbol!  */
+/* FIXME: It has been previously suggested to make this function an
+   alias for symbol-function, but upon discussion at Debbug#23957,
+   there is a risk breaking backward compatiblity, as some users of
+   fboundp may expect `t' in particular, rather than any true
+   value.  An alias is still welcome so long as the compatibility
+   issues are addressed.  */
 DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0,
        doc: /* Return t if SYMBOL's function definition is not void.  */)
   (register Lisp_Object symbol)