(cvs-temp-buffer): Disable undo in temp buffers.

lisp/ChangeLog

+2007-07-24  Stefan Monnier  <monnier@iro.umontreal.ca>
+
+	* pcvs.el (cvs-temp-buffer): Disable undo in temp buffers.
+
 2007-07-23  Stefan Monnier  <monnier@iro.umontreal.ca>
 
 	* ses.el (ses-cleanup): Prevent Emacs from spuriously checking if the

lisp/pcvs.el

@@ -396,7 +396,9 @@ from the current buffer."
       (set (make-local-variable 'cvs-buffer) cvs-buf)
       ;;(cvs-minor-mode 1)
       (let ((lbd list-buffers-directory))
-	(if (fboundp mode) (funcall mode) (fundamental-mode))
+	(if (fboundp mode) (funcall mode)
+          (fundamental-mode)
+          (buffer-disable-undo))
 	(when lbd (set (make-local-variable 'list-buffers-directory) lbd)))
       (cvs-minor-mode 1)
       ;;(set (make-local-variable 'cvs-buffer) cvs-buf)