James Addison wrote:
I agree that '@as []' is written to the 'xkb-options' config entry
momentarily after disabling the Compose Key.
However, a divergence/repro does appear (repeatably) on this system:
After logging out and back in again, the entry has been rewritten:
$ dconf read /org/gnome/desktop/input-sources/xkb-options
['compose:lwin']
That indicates a problem with the ~/.config/dconf/user file, doesn't it?
Maybe try to rename it to e.g. user.bak, relogin, and see how it behaves
with a fresh ~/.config/dconf/user file.
--
Gunnar