bug#45617: <query-replace> loses the edit region. Works in 23.3, broke in 26.3

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Cc: "'Eli Zaretskii'" <eliz@gnu.org>,  <45617@debbugs.gnu.org>
> Date: Fri, 15 Jan 2021 10:54:56 +0200
> 
> The problem is that 'read-from-minibuffer' is implemented in C.
> If it was implemented in Lisp, it would be easy to add just
> 'save-mark-and-excursion', but in C this is impossible.

You can do the equivalent of that in C, can't you?