bug#68930: 30.0.50; Emacs conflates C-Ω and C-ω

[Eli Zaretskii]

> Date: Sun, 04 Feb 2024 20:49:26 +0000
> From:  Alexander Prähauser via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
> 
> Emacs confuses C-ω and C-Ω. This seems to happen regardless of the init file.
> For instance, if started with a basic init containing only the lines
> 
> (define-key global-map (kbd "C-ω") 'kill-region)
> (define-key global-map (kbd "C-Ω") 'copy-to-register)
> 
> the commands are recalled by exactly the reversed key combinations, C-Ω
> kills and C-ω copies to register. Both Ω and ω are here in the xkb-map
> of the keyboard layout as unicode characters, U03A9 and U03C9
> respectively. I tried using C-Ω and C-ω as key combinations for commands
> in the Firefox-plugin Tridactyl to see if it confuses them as well, but
> it seems to be able to distinguish them.

What does "C-h l" say about what keys Emacs received?