Remove the Ctrl+G shortcut (remnant of the bone group assignment operator), and change the 'Pose / Bone Collections' menu so that it handles linked and overridden data properly. Shift+M now shows that menu too.
Remove the Ctrl+G shortcut (remnant of the bone group assignment operator), and change the 'Pose / Bone Collections' menu so that it handles linked and overridden data properly. Shift+M now shows that menu too.