bug#65071: 29.1; RMAIL changed on disk leads to rmail-error-bad-format

[Eli Zaretskii <eliz@gnu.org>]

> Cc: 65071@debbugs.gnu.org
> Date: Sun, 06 Aug 2023 09:36:45 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> 
> >     "File RMAIL changed on disk. Reread from disk? (yes or no) " yes RET
> > 
> >     "rmail-error-bad-format: Message is not a valid RFC 822 (or later)
> >     message"; Emacs mode changes from RMAIL to Fundamental
> > 
> > At this point the ~/RMAIL file on disk looks good (proper RFC 822 file),
> > but the ~/RMAIL file as visited in buffer looks bad, as can be seen
> > (e.g., upon immediate save) to be missing top "From " and other header
> > lines ("Return-Path:", "Received:", etc.). I have many years experience
> > with Emacs and RMAIL and this behavior is new as of 29.1 or another very
> > recent version of Emacs.
> 
> Thanks, this should be fixed now on the emacs-29 branch.  The reason
> for the bug was a change in revert-buffer we made during Emacs 29
> development.

No comments within a week, so I assume the bug is indeed fixed, and
I'm closing it.