bug#4933: 23.1.50; RCS buffer: save-buffer moves point to beginning of buffer

[Stefan Monnier <monnier@iro.umontreal.ca>]

> Start Emacs with -Q -q.
> C-x C-f a file with an RCS version control file behind it.
> perform some edit somewhere.
> C-x C-s.
> Bug: Point does not stay where it was, but jumps to the beginning of the file.
> (Note that this does not seem to occur with, e.g., svn-controlled files.)

Thank you for that precise bug report.  I've just installed the patch
below which should fix it,


        Stefan


--- vc-rcs.el.~1.97.~	2009-11-15 23:34:56.000000000 -0500
+++ vc-rcs.el	2009-11-16 09:38:57.000000000 -0500
@@ -1056,6 +1056,7 @@
    ((not (get-file-buffer file)) nil)
    ((let (status version locking-user)
       (with-current-buffer (get-file-buffer file)
+        (save-excursion
         (goto-char (point-min))
         (cond
          ;; search for $Id or $Header
@@ -1112,7 +1113,7 @@
             (setq status 'rev)))
          ;; else: nothing found
          ;; -------------------
-         (t nil)))
+           (t nil))))
      (if status (vc-file-setprop file 'vc-working-revision version))
      (and (eq status 'rev-and-lock)
 	  (vc-file-setprop file 'vc-state