bug#38569: 27.0.50; Certain emoji crashes with "X protocol error: BadLength"

[Eli Zaretskii]

> Date: Fri, 13 Dec 2019 11:14:51 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: robert@cochranmail.com, shelvacu@gmail.com, 38569@debbugs.gnu.org,
>  robert-emacs@cochranmail.com
> 
> > Eli, we could install my patch to filter out all colour fonts (see
> > <https://lists.gnu.org/archive/html/bug-gnu-emacs/2019-11/msg00409.html>),
> > that should reduce the amount of whack-a-mole required.
> 
> I guess that's okay to install, given the problems, thanks.

Perhaps also add something to NEWS, to the effect that
xft-ignore-color-fonts now ignores more color fonts, and if the user
wants to set that to nil, they might need to add certain emoji fonts
to face-ignored-fonts in order to prevent crashes.

Thanks.