[REMINDER libX11] XIM: Allow modifier releases in compose sequences (#26705)

[James Cloos]

I put it though some successful tests and have pushed it as
d3b3570592e9b9e57f270a0bd86762fd205a2833 and resolved the bz.

Does patchwork need any update, too?

-JimC
-- 
James Cloos <cloos at jhcloos.com>         OpenPGP: 1024D/ED7DAEA6