Index: branches/5.2.x/core/units/helpers/user_helper.php
===================================================================
diff -u -N -r15410 -r15519
--- branches/5.2.x/core/units/helpers/user_helper.php	(.../user_helper.php)	(revision 15410)
+++ branches/5.2.x/core/units/helpers/user_helper.php	(.../user_helper.php)	(revision 15519)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: user_helper.php 15410 2012-06-15 12:45:22Z alex $
+* @version	$Id: user_helper.php 15519 2012-08-19 17:58:40Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -161,7 +161,9 @@
 
 			if ($user_id != USER_ROOT) {
 				$groups = $this->Application->RecallVar('UserGroups');
-				$this->Application->Session->SetField('GroupId', reset( explode(',', $groups) ));
+				list ($first_group, ) = explode(',', $groups);
+
+				$this->Application->Session->SetField('GroupId', $first_group);
 				$this->Application->Session->SetField('GroupList', $groups);
 				$this->Application->Session->SetField('TimeZone', $object->GetDBField('TimeZone'));
 			}