Re: Stop frames stealing eachothers' minibuffers!

[Eli Zaretskii]

> Date: Wed, 11 Nov 2020 20:37:16 +0000
> Cc: Andrii Kolomoiets <andreyk.mad@gmail.com>, monnier@iro.umontreal.ca,
>   enometh@meer.net, emacs-devel@gnu.org
> From: Alan Mackenzie <acm@muc.de>
> 
> > > C-x 5 2
> > > M-x
> > > C-x 5 o
> > > M-x
> 
> > > With the default setting of `enable-recursive-minibuffers`, the
> > > minibuffer is moved to active frame, but the error message is displayed
> > > in the other frame.
> 
> > Arguably a bug.  Alan, could you please look into this?
> 
> I think this is a bug, too.
> 
> I've been looking at the C sources for some while but haven't found
> anything useful.  I've tried setting echo_area_window during the frame
> change, but this doesn't have any visible effect.
> 
> I'll carry on with the diagnosis.  Any quick tips would be welcome.

My guess is that this is somehow related to the fact that error
messages are displayed as part of handling an error signal, which
causes a throw to top level.