Author :
Pierre Le Marre
Date :
2025-01-25 11:01:03
Hash :af5704dc Message :state: Fix empty level not breaking latches
In essence empty levels are levels with just a `NoSymbol` keysym and
a `NoAction()`, which breaks latches.
Fixed regression introduced in fdf2c525977e7e8af4135d593110f5bc1454abd8.
Added tests also for the case where the keycode is unknown.