Subject: bug#79311: 31.0.50; Some characters not displayed when using standard-display-table

From: Eli Zaretskii <[email-masked]>
Date: Tue, 26 Aug 2025 05:30:24 +0300

> From: Andy Moreton <[email-masked]>
> Date: Mon, 25 Aug 2025 22:15:54 +0100
> 
> On Mon 25 Aug 2025, Eli Zaretskii wrote:
> 
> >> From: Matija Obid <[email-masked]>
> >> Date: Mon, 25 Aug 2025 16:07:46 +0000
> >> 
> >> Steps to reproduce:
> >> $ emacs -Q
> >> #+begin_src elisp
> >> (setq standard-display-table (make-display-table))
> >> (aset standard-display-table ?> [?\〉])
> >> (switch-to-buffer ">")
> >> #+end_src
> >
> >> 
> >> The buffer name in modeline is displayed as a square instead of parenthesis.
> >
> > Thanks, should be fixed now.
> 
> This seems to cause display glitches in gnus on Windows, when using
> non-ASCII chars for the indicators in gnus-sum-thread-tree-* variables.
> These glitches did no occur in a build from two days ago.
> 
> The symptom is the gnus summary buffer displays \xe2 characters, instead
> of the expected character, e.g. WHITE SQUARE (codepoint #x25a1) which
> has buffer code #xE2 #x96 #xA1.
> 
> The wrong display is transient, in that moving the cursor over the wrong
> display fixes the glitch.

Thanks, but please show a recipe starting from "emacs -Q", so I could
look into this.