Still being notified when group notification is Disabled

I do not know, maybe it's not a bug, just a behaviour, but it happened with https://gitlab.gnome.org/Community/Engagement/General/issues/39 that I've been notified about it, even I have set in Settings->Notifications to have the notifications Disabled for group GNOME. I expected that I'll be out of question for anything from the GNOME group in this case. This can be related to issue #43686 (moved).