bug#34317: 26.1.90; Wrong unbinding order in x_consider_frame_title

[Eli Zaretskii]

> Date: Tue, 19 Feb 2019 10:07:36 +0100
> From: martin rudalics <rudalics@gmx.at>
> 
>  > The attached trivial patch cures it.  Obviously, there's no guarantee
>  > that some other client relies on the wrong order.
> 
> Any suggestions on how to proceed?  This is a regression wrt Emacs 25.

How about installing this on master?  Just please mention in the
comments the convoluted use case that caused the change in order, so
that we don't forget.