bug#61667: 29.0.60; Failure to redisplay

[Eli Zaretskii]

> Date: Mon, 17 Apr 2023 01:26:28 +0300
> Cc: 61667@debbugs.gnu.org
> From: Dmitry Gutov <dgutov@yandex.ru>
> 
> > Dmitry, does this happen with Emacs 28?
> 
> Actually, this one might be a master-only problem.

I wasn't aware of that; the Subject says 29.  I tried on the release
branch and in the installed 29.0.90.

> But it's pretty easy to repro on master. I'll try to bisect and report back.

Thanks.