bug#59347: 29.0.50; `:family` face setting ignored

[Stefan Monnier]

> By the way, I suspect (but do not have a recipe right now) that the same bug
>  exists with the :width and :slant attributes (namely, that setting the font
>  for the default face with an "exotic" value leads to suboptimal/wrong font
>  choices for other faces), and that they should also be set to nil in
>  font_find_for_lface.

IIUC the way we manage choose fonts is that we ask for a list of fonts
matching a particular pattern.  If that list is empty we make the
pattern more coarse and try again.  And when the list is not empty we
choose the best fit based on a score.

So in essence, what you're saying is that we should rely more on
scoring, and start with a coarser pattern right from the beginning?


        Stefan