Index: src/bp-groups/bp-groups-filters.php
===================================================================
--- src/bp-groups/bp-groups-filters.php	(revision 9973)
+++ src/bp-groups/bp-groups-filters.php	(working copy)
@@ -92,7 +92,6 @@
 	$allowed_tags['img']           = array();
 	$allowed_tags['img']['src']    = array();
 	$allowed_tags['img']['alt']    = array();
-	$allowed_tags['img']['class']  = array();
 	$allowed_tags['img']['width']  = array();
 	$allowed_tags['img']['height'] = array();
 	$allowed_tags['img']['class']  = array();