bug#47339: 28.0.50; Info-quoted face: no attributes, looks too small

[Eli Zaretskii]

> Date: Thu, 25 Mar 2021 08:26:40 +0300
> From: Jean Louis <bugs@gnu.support>
> Cc: 47339@debbugs.gnu.org
> 
> > > > That's something specific to your setup, I don't see any such
> > > problem
> > > > here.
> > > > 
> > > > What are the attributes of the fixed-pitch-serif face on that
> > > system?
> > > 
> > > How do I get attributes for that?
> > 
> > M-x customize-face RET fixed-pitch-serif RET
> 
> Hide Fixed Pitch Serif face: [sample]
>     State : STANDARD.
>    The basic fixed-pitch face with serifs.
>    [X] Font Family: Monospace Serif

So what is this "Monospace Serif" font used here?

What does the following produce (in "emacs -Q", please):

  M-: (face-font 'fixed-pitch-serif) RET