Still getting group membership request notifications after disabling them

In 10.0.2, I have disabled live notifications for all group membership requests.

Notifications turned off in Settings

Even so, I am still receiving dozens of requests for groups that I own through roles.

Too many notifications in my notifications area

Membership panel from one of the notifying groups shows I am an owner

Does the option to turn off notifications not work for role-based notifications? I just cleared out the notifications this morning and now have close to 80 that need to be cleared out, so disabling them is important so I don't miss important notifications (membership requests aren't one of them).