bug#19972: 24.4; Font size change doesn't update (window-total-width)

[Eli Zaretskii]

> Date: Mon, 02 Mar 2015 19:43:26 +0100
> From: martin rudalics <rudalics@gmx.at>
> CC: joostkremers@fastmail.fm, 19972@debbugs.gnu.org
> 
>  > Sorry, I didn't realize you were talking about the master branch.
> 
> I was because your first backtrace was from the master branch.

I didn't realize there was any difference regarding this issue between
the two branches.