Subject: Re: bug#38016: 27.0.50; Display issues with delay-warning and side-by-side windows in terminal

From: Eli Zaretskii <[email-masked]>
Date: Fri, 01 Nov 2019 09:06:45 +0200

> From: Tom Levy <[email-masked]>
> Date: Fri, 01 Nov 2019 18:11:45 +1300
> 
> Maximize a terminal window to make Emacs use a side-by-side window split.
> Run: emacs -Q -nw --eval '(delay-warning :debug "line 1\nline 2")'
> The *scratch* and *Warnings* buffers should be displayed side by side.
> Press M-< C-e RET DEL (in the *scratch* buffer).
> Line 2 in the *Warnings* buffer disappears (!)
> 
> Variation: run Emacs as before, but press M-< C-e a RET
> Line 2 in the *Warnings* buffer moves down (!)
> 
> Happens in master (27.0.50) and 24.5.1, with both gnome-terminal and
> xterm.

I couldn't reproduce this, neither on GNU/Linux nor on MS-Windows.
Can anyone else reproduce this?

Does the "disappearing" and "moving" text really disappear and move?
What happens if you invoke "M-x redraw-display RET" after your recipe:
does the display return to be as expected?