ob.el: Fix bug.

lisp/org/ChangeLog

@@ -1,3 +1,8 @@
+2012-05-16  Eric Schulte  <eric.schulte@gmx.com>
+
+	* ob.el (org-babel-parse-src-block-match): Save match data during
+	indentation check.
+
 2012-05-16  Bastien Guerry  <bzg@gnu.org>
 
 	* org.el (org-scan-tags): Correctly match TODO keywords.

lisp/org/ob.el

@@ -1159,7 +1159,8 @@ may be specified in the properties of the current outline entry."
 		      (substring body 0 sub-length)
 		    (or body "")))))
 	 (preserve-indentation (or org-src-preserve-indentation
-				   (string-match "-i\\>" switches))))
+				   (save-match-data
+				     (string-match "-i\\>" switches)))))
     (list lang
           ;; get block body less properties, protective commas, and indentation
           (with-temp-buffer