Deleted key binds still persist

[lamchau]

Version: 1.17.3 / macOS 15.7.2

When assigning a shortcut to a group, it will never release the key bind. This persists in the .plist so despite doing a combination of the following

1. Deleting the group
2. Rebooting
3. Deleting config.json
4. Deleting the entry from config.json

Steps to repro

1. Set the key bind of ctrl+cmd+x for the group d
2. Add an action
3. Delete group

Expected: Key binding to be removed

The only way to do this is to edit or delete com.brnbw.Leader-Key from ~/Library/Preferences