bug#5740: 24.0.50; Gomoku display bug

[Stefan Kangas]

Stephen Berman <stephen.berman@gmx.net> writes:

> 1. emacs -Q
> 2. M-x gomoku
> 3. Play until the game is won, then press RET, which clears the board.
> => The positions occupied at the end of the just cleared board display a
> residue of the characters -- a thin red line from the right side of the
> `O' and two green dots from the right side of the `X'.  Typing C-l
> eliminates the residue.
>
> This is with the default font on my system:
> xft:-monotype-Andale Mono-normal-normal-normal-*-12-*-*-*-m-0-iso10646-1
> Normally I use this font:
> xft:-unknown-DejaVu Sans Mono-bold-normal-normal-*-12-*-*-*-m-0-iso10646-1
> and with this the above bleeding does not occur (with the Andale Mono
> font I can see that the Gomoku `O' and `X' characters are slightly wider
> than the block cursor, while with DejaVu Sans Mono they are just as wide
> as the cursor).

This is an old bug report from 9 years ago, that unfortunately didn't
get an answer at the time.

I'm unable to reproduce this on Emacs 26.1.  Are you still seeing this
on a more modern version of Emacs?

Best regards,
Stefan Kangas