bug#63949: 30.0.50; `vc-print-log´ does not erase buffer when called from *vc-change-log* buffer, at least for CVS logs

[Dmitry Gutov]

On 21/06/2023 18:30, Eli Zaretskii wrote:
> > Date: Wed, 21 Jun 2023 17:37:55 +0300
> > Cc:63949@debbugs.gnu.org, Jens Schmidt<jschmidt4gnu@vodafonemail.de>
> > From: Dmitry Gutov<dmitry@gutov.dev>
> >
> > On 21/06/2023 16:03, Jens Schmidt wrote:
> > > Tested on emacs-29.
> > Excellent, thank you.
> >
> > Eli, I suggest we push it to emacs-29 now.
> Fine by me, thanks.

And done.

> > There could be ways to make it prettier, but probably not by much -- at
> > least I don't see any obvious ones if we're keeping the indirect
> > buffer-related functionality. Anyway, we can look into that later in
> > Emacs 30.
> Right.

I'm attaching a patch which should work fine, though could be a tad 
risky for 29.

Jens (and possibly others), could you try it out?

vc-deduce-fileset.diff
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