bug#19993: 25.0.50; Unicode fonts defective on Windows

[Eli Zaretskii]

> Date: Sun, 8 Mar 2015 09:20:17 -0700
> From: Ilya Zakharevich <ilya@math.berkeley.edu>
> Cc: 19993@debbugs.gnu.org
> 
> BTW, using Unifont from unifondry is asking for trouble.

I know.  I just tried to see if Emacs will pick up a new font for a
character it couldn't display before that.  It did in this case, but I
suspect that it might be because of what setup-default-fontset does.