bug#57555: 29.0.50; variable-pitch font issue with medium weight default font

[Amin Bandali <bandali@gnu.org>]

Gregory Heytings writes:

> Amin, can you try the following patch, and tell us if it fixes your
> problem?
>
> diff --git a/src/xfaces.c b/src/xfaces.c
> index 5e3a47d7f8..08f37cf0b2 100644
> --- a/src/xfaces.c
> +++ b/src/xfaces.c
> @@ -6058,7 +6058,7 @@ realize_gui_face (struct face_cache *cache,
> Lisp_Object attrs[LFACE_VECTOR_SIZE]
>         }
>        if (! FONT_OBJECT_P (attrs[LFACE_FONT_INDEX]))
>         attrs[LFACE_FONT_INDEX]
> -         = font_load_for_lface (f, attrs, attrs[LFACE_FONT_INDEX]);
> +         = font_load_for_lface (f, attrs, Ffont_spec (0, NULL));
>        if (FONT_OBJECT_P (attrs[LFACE_FONT_INDEX]))
>         {
>           face->font = XFONT_OBJECT (attrs[LFACE_FONT_INDEX]);
>

Thank you both.  Gregory, your proposed patch indeed seems to help fix
this and restore the expected behaviour for my use-case as far as
I can tell; thanks!  Would you mind elaborating on how you suspected
this might be a potential fix?

Thanks again,
-a