bug#27398: segfault in turn_on_face

[Eli Zaretskii]

> From: "Björn Griebenow" <B.Griebenow@web.de>
> Date: Fri, 16 Jun 2017 13:46:03 +0200
> Sensitivity: Normal
> 
> I have encountered a bug which segfaults Emacs in "-nw" mode but not in 
> graphical mode.
> I can reproduce the bug with:
> - Emacs 25.1 (prebuild by Debian as version 25.1+1-4)
> - Emacs 25.2 (fresh build from git repository (emacs-25.2 branch))

Can you try the master branch, please?  A similar problem was fixed
there a few months ago, see bug#26097.

If the master branch doesn't solve this, is it possible to provide a
reproducible recipe starting from "emacs -Q" that triggers this crash?

Thanks.