diff --git a/admin/inc/class.admin_cmd_edit_group.inc.php b/admin/inc/class.admin_cmd_edit_group.inc.php
index 4021a69a6f..fbe3903337 100644
--- a/admin/inc/class.admin_cmd_edit_group.inc.php
+++ b/admin/inc/class.admin_cmd_edit_group.inc.php
@@ -232,7 +232,7 @@ class admin_cmd_edit_group extends admin_cmd
 		foreach($data['set'] as $name => $value)
 		{
 			if ($data['old'][$name] == $value ||
-				is_array($value) && count($value) == count(array_intersect($value, $data['old'][$name])))
+				is_array($value) && sort($value) && sort($data['old'][$name]) && $value == $data['old'][$name])
 			{
 				unset($data['old'][$name], $data['set'][$name]);
 			}