bug#43363: 27.1; Wrapped comment line that contains cyrillic text is displayed in different colors

[Eli Zaretskii]

> Date: Mon, 05 Oct 2020 11:20:42 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: 43363@debbugs.gnu.org, dragoljub.sisovic@gmail.com
> 
> Observation #1: It is not some simple redisplay glitch, as "M-x
> redraw-display" doesn't fix the problem.  Looks like the region face
> and the text face aren't merged properly for some reason.
> 
> Observation #2: It doesn't happen only with Cyrillic characters, of
> course, it seems to happen with any non-ASCII non-Latin characters.
> 
> Observation #3: It never happens in the initial portion of a continued
> line, only in the continuation lines.
> 
> Hmm...

Should be fixed now on the emacs-27 branch.