>> Recipe with emacs -q
 >>
 >> - C-x 2
 >> - Eval (set-window-parameter nil 'no-other-window t)
 >> - Eval (setq ignore-window-parameters t)
 >> - C-x o
 >> - C-x o
 >>
 >> => No other window to select
 >>
 >> In GNU Emacs 31.0.50 (build 1, aarch64-apple-darwin24.0.0) of 2024-10-07
 >>   built on pro2
 >> Repository revision: 8c5d69998e65d3ecf5f599bd828bf3330f4f118a
 >> Repository branch: master
 >> System Description:  macOS 15.0.1
 >
 > This can also be reproduced in Emacs 30.
 >
 > Adding Martin to the discussion.

A fix against the release version is attached (fixes for the manual not
included).  But I would have to run it here for a month at least in
order to make sure that it never selects tooltip windows or the like.
So it's by all means for master only.

martin