bug#65837: 30.0.50; Debugger in non-main threads

[Eli Zaretskii]

> From: Helmut Eller <eller.helmut@gmail.com>
> Cc: 65837@debbugs.gnu.org
> Date: Sat, 09 Sep 2023 20:29:15 +0200
> 
> On Sat, Sep 09 2023, Eli Zaretskii wrote:
> 
> > Preventing thread switch is definitely orders of magnitude simpler,
> > IMO.
> 
> Well, then I'll wait until you fix this bug.

Fair enough.

Can you describe the bug, though?  What exactly happens that is wrong,
and how to reproduce it?