Called by:
Mobilizon.Federation.ActivityPub.Permission.can_create_group_object?
(L50)
Mobilizon.Federation.ActivityPub.Permission.activity_actor_is_group_member?
(L125)
Mobilizon.GraphQL.Resolvers.Followers.find_followers_for_group
(L26)
Mobilizon.GraphQL.Resolvers.Followers.update_follower
(L51)