Subject: Re: bug#39379: 27.0.60; Fix for #38457 broke ido-vertical-mode

From: Eli Zaretskii <[email-masked]>
Date: Sun, 02 Feb 2020 20:06:16 +0200

> Date: Sun, 02 Feb 2020 19:23:46 +0200
> From: Eli Zaretskii <[email-masked]>
> Cc: [email-masked], [email-masked]
> 
> I think this could be a bug in the display engine, related to resizing
> the mini-window when an after-string that includes many newlines is
> put at EOB.  Let me look into it.

Looks like my guess was correct.  I'll try to devise a solution.