The definitions for F10 are different (I expected that, I did that change) - but they should not matter if the XKB events are identical (and they are!).
What I suspect is that some app (gnome-terminal?) somehow checks the key definition. Why? I have no idea. Something was hardcoded - some workaround, perhaps - there was an issue with functional keys in 2.4. But xev output proves there is nothing to fix in xk-c
The definitions for F10 are different (I expected that, I did that change) - but they should not matter if the XKB events are identical (and they are!).
What I suspect is that some app (gnome-terminal?) somehow checks the key definition. Why? I have no idea. Something was hardcoded - some workaround, perhaps - there was an issue with functional keys in 2.4. But xev output proves there is nothing to fix in xk-c