bug#64596: 30.0.50; On FIXME: in src/buffer.c:1481 (force-mode-line-update)

[Eli Zaretskii]

> From: Ihor Radchenko <yantar92@posteo.net>
> Cc: Eli Zaretskii <eliz@gnu.org>, 64596@debbugs.gnu.org
> Date: Sun, 16 Jul 2023 05:52:04 +0000
> 
> Stefan Monnier <monnier@iro.umontreal.ca> writes:
> 
> > -  /* True means redisplay has to consider all windows on all
> > -     frames.  False, only selected_window is considered.  */
> > +  /* False, means that only the selected_window needs to be updated.
> > +     True means that other windows may need to be updated as well,
> > +     so we need to consult the `redisplay` bits of
> > +     all windows/buffer/frames.  */
> >    bool consider_all_windows_p;
> 
> BTW, is there any particular reason why windows_or_buffers_changed is
> not a queue of windows/buffer to be re-displayed?

Why do we need such a queue, when the redisplay flags of buffers and
windows are supposed to tell us that already?