* diff.el (diff-parse-differences): Preserve the match data

	across the call to find-file-noselect.

1 files changed, 2 insertions, 1 deletions

diff --git a/lisp/diff.el b/lisp/diff.el
index d4c5f5d3a2e..7043c9ac73e 100644
--- a/lisp/diff.el
+++ b/lisp/diff.el
@@ -113,7 +113,8 @@ is nil, REGEXP matches only half a section.")
                                                 (match-beginning subexpr)
                                                 (match-end subexpr)))))
                                     (save-excursion
-                                      (set-buffer (find-file-noselect file))
+                                      (save-match-data
+                                        (set-buffer (find-file-noselect file)))
                                       (save-excursion
                                         (goto-line line)
                                         (point-marker)))))