Index: files.el
===================================================================
RCS file: /sources/emacs/emacs/lisp/files.el,v
retrieving revision 1.862
diff -u -r1.862 files.el
--- files.el	12 Oct 2006 23:00:44 -0000	1.862
+++ files.el	22 Oct 2006 12:01:49 -0000
@@ -148,6 +148,7 @@
   :type 'boolean
   :group 'backup)
 (make-variable-buffer-local 'buffer-offer-save)
+(put 'buffer-offer-save 'permanent-local t)
 
 (defcustom find-file-existing-other-name t
   "Non-nil means find a file under alternative names, in existing buffers.