MM-63311 (#30387)

* allow reference group changes

server/channels/store/store.go

@@ -882,7 +882,7 @@ type GroupStore interface {
 	GetByIDs(groupIDs []string) ([]*model.Group, error)
 	GetByRemoteID(remoteID string, groupSource model.GroupSource) (*model.Group, error)
 	GetAllBySource(groupSource model.GroupSource) ([]*model.Group, error)
-	GetByUser(userID string) ([]*model.Group, error)
+	GetByUser(userID string, opts model.GroupSearchOpts) ([]*model.Group, error)
 	Update(group *model.Group) (*model.Group, error)
 	Delete(groupID string) (*model.Group, error)
 	Restore(groupID string) (*model.Group, error)