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

[Eli Zaretskii]

> From: "Bob Floyd" <bobfloyd@comcast.net>
> Date: Sat, 2 Jan 2021 17:05:57 -0800
> 
> 7. Nothing happens because the region in step (1) has been lost.
>     It should ask to replace 4 ‘_xx’s in the region.

I suspect this is due to changes in how selection works in Emacs.
Those changes were made in Emacs 24; please see the section "Selection
changes" in the file etc/NEWS.24, where you will also find
instructions for getting back the old behavior.