bug#24580: 25.2.50; query-replace history doesn't work

[Eli Zaretskii]

> Date: Mon, 3 Oct 2016 20:24:51 -0400
> From: Mark Oteiza <mvoteiza@udel.edu>
> Cc: mbork@mbork.pl, 24580@debbugs.gnu.org
> 
> > Does a simple defvar you suggested before not work?
> 
> No, unless I erred somehow, which is likely, because what I tried first
> (binding minibuffer-history) didn't appear to work either.  However, the
> following does appear to solve the issue.

This looks much safer, so if you are okay with it, please push to
master.

Thanks.