dead key pressed twice is not disabled after the first non-dead-key pressed

Steps to reproduce

I've reproduced this with a f41 livecd. You need xkeyboard-config >= 2.42 to get the ergo-l layout.

1. In gnome control center, go to keyboard/add input source/French/French(Ergo-l)
2. Open a gtk application where you can input text (I used gnome text editor, but I was also able to reproduce with gtk demos)
3. Press the key labelled o, o, then d, and d once more (key names on a qwerty keyboard)

Current behavior

ëè

Expected outcome

ëe

o o in ergol is supposed to add ¨ to the next key pressed, and the key pressed after that should get the default behaviour. If I want to get ëè in ergol, I'd press o o d o d QT applications, or electron application have the expected behaviour, o o d d prints ëe

Version information

I'm using fedora 41 with wayland, gtk4-4.16.5-2.fc41.x86_64 and xkeyboard-config-2.42-2.fc41.noarch

I was also able to reproduce a few weeks ago with gtk built from git.

Additional information