Subject: Re: bug#14824: 24.3.50; Regression: problem with undo in Mail mode

From: Stefan Monnier <[email-masked]>
Date: Tue, 09 Jul 2013 04:56:10 -0400

>> emacs -Q
>> 1
>> C-x u
>> ; buffer still marked modified

> Bisected to:

> revno: 111447
> author: Aaron S. Hawley <[email-masked]>
> committer: Stefan Monnier <[email-masked]>
> branch nick: trunk
> timestamp: Tue 2013-01-08 14:13:31 -0500
> message:
>   * lisp/simple.el (primitive-undo): Move from undo.c.
>   * src/undo.c (Fprimitive_undo): Move to simple.el.
>   (syms_of_undo): Remove declaration for Sprimitive_undo.
>   * test/automated/undo-tests.el: New file.

A shot in the dark: it might be due to the finer timestamps (since
these were introduced fairly recently, whereas Aaron's code is actually
pretty old (even tho it was installed only recently)).

Aaron?

        Stefan