Index: src/includes/extend/buddypress/notifications.php
===================================================================
--- src/includes/extend/buddypress/notifications.php	(revision 5449)
+++ src/includes/extend/buddypress/notifications.php	(working copy)
@@ -75,6 +75,8 @@
 
 		return $return;
 	}
+
+	return $action;
 }
 add_filter( 'bp_notifications_get_notifications_for_user', 'bbp_format_buddypress_notifications', 10, 5 );