bug#18815: 25.0.50; emacs crash

[Eli Zaretskii]

> From: Yagnesh Raghava Yakkala <hi@yagnesh.org>
> Cc: 18815@debbugs.gnu.org
> Date: Sat, 25 Oct 2014 02:36:28 +0900
> 
> Built with your fix. Still experiencing crashes.
> 
> > please tell what is your mode-line-format at the moment of the assertion
> > violation.
> 
> mode-line-format is set to the following:
> ╭─────
> │("%e" mode-line-front-space mode-line-mule-info mode-line-client 
> mode-line-modified mode-line-remote mode-line-frame-identification 
> mode-line-buffer-identification "   " mode-line-position
> │ (vc-mode vc-mode)
> │ "  " mode-line-modes mode-line-misc-info mode-line-end-spaces)
> ╰─────

OK, just setting mode-line-format ti this doesn't cause a crash.  So
I'd need to know what you did before the crash, the major mode, etc.

It is best to have a reproducible recipe starting with "emacs -Q".

Thanks.