bug#71473: 30.0.50; crash in restore_kboard_configuration after pop_kboard

[Eli Zaretskii]

> From: Daniel Clemente <n142857@gmail.com>
> Date: Tue, 11 Jun 2024 16:52:23 +0000
> Cc: 71473@debbugs.gnu.org
> 
> > Sorry, I'm going to drop the ball on this one.  You've somehow caused
> > Emacs to enter the debugger while in redisplay, which causes us to
> > throw to top-level.  I think it's okay for Emacs to commit suicide in
> > that case.
> 
> Ok, since it's a rare bug.
> 
> I'll remind myself that calling (debug) can in some cases crash the
> server, and I'll try to avoid using (debug) to reproduce other bugs.

I think the main problem is rather the infinite recursion, not debug.
The latter just adds insult to injury.