bug#58538: anti-alias fix results in ugly scaled fonts

[Mike Kupfer]

Hi Stephen, can you post screenshots of what you currently get and what
you expected?

I wonder if the difference has something to do with the font registry.

With 

  /usr/new/bin/emacs -Q -fn "-*-fixed-*-*-*-*-*-*-*-*-*-*-*-*" --eval 
"(buffer-face-set 'variable-pitch)"

or

  /usr/new/bin/emacs -Q -fn "-*-fixed-*-*-*-*-*-*-*-*-*-*-jisx0201.1976-*" 
--eval "(buffer-face-set 'variable-pitch)"

I get

With

  /usr/new/bin/emacs -Q -fn "-*-fixed-*-*-*-*-*-*-*-*-*-*-iso10646-*" --eval 
"(buffer-face-set 'variable-pitch)"

or

  /usr/new/bin/emacs -Q -fn "-*-fixed-*-*-*-*-*-*-*-*-*-*-iso8859-*" --eval 
"(buffer-face-set 'variable-pitch)"

I get

(This is on Debian Bullseye, running i3.)

mike