bug#42943: 28.0.50; Emacsclient crashes in ftcrfont_glyph_extents

[Eli Zaretskii]

> From: Robert Pluim <rpluim@gmail.com>
> Cc: contovob@tcd.ie,  larsi@gnus.org,  42943@debbugs.gnu.org
> Date: Mon, 26 Oct 2020 13:33:49 +0100
> 
> > Now the important question: should we install this on master or on the
> > release branch?  I believe the problem is not limited to 28.0.50, is
> > it?  OTOH, is this safe enough to install on emacs-27?
> 
> I can't reproduce this crash on emacs-27 built with Cairo + Harfbuzz
> at all.

I'm a bit surprised.  But okay, let's install on master and wait for
reports about similar problems on emacs-27.

Pushed.