bug#50096: args-out-of-range in redisplay_internal

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Cc: Clemens <clemera@posteo.net>,  50096@debbugs.gnu.org
> Date: Fri, 20 Aug 2021 10:09:34 +0300
> 
> tags 50096 fixed
> close 50096 28.0.50
> thanks
> 
> > Unfortunately, the best I could do to fix this is disable hscrolling
> > in display of echo-area messages (but NOT in the minibuffer editing --
> > that should still work).  Please see the latest master and tell if
> > this is acceptable.  If it isn't, the only alternative I see is to
> > back out the fix for bug#46718, which I suspect Clemens won't like...
> > Or maybe someone braver than myself will redesign and re-implement
> > with_echo_area_buffer in a way that avoids creating this situation
> > with glyph matrices in the first place.
> 
> Thanks, now everything works fine.  I think mini-window doesn't need
> hscrolling, because it should display the beginning of the truncated
> echo-area message, not its end.

Yes, that was also my thinking, in general.

Thanks.