Subject: Re: bug#46177: 27.1; Display problem with minibuffer overlay when using display property

From: Eli Zaretskii <[email-masked]>
Date: Fri, 29 Jan 2021 20:37:12 +0200

> From: Clemens <[email-masked]>
> Date: Fri, 29 Jan 2021 18:58:46 +0100
> 
> When using an overlay with an `after-string` which uses `display`
> the prompt background bleeds into the after string:

That's a feature: Emacs treats display strings and overlay strings
differently for the purposes of face merging.