Index: branches/5.0.x/core/kernel/event_manager.php
===================================================================
diff -u -r12167 -r12294
--- branches/5.0.x/core/kernel/event_manager.php	(.../event_manager.php)	(revision 12167)
+++ branches/5.0.x/core/kernel/event_manager.php	(.../event_manager.php)	(revision 12294)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: event_manager.php 12167 2009-08-04 16:21:38Z alex $
+* @version	$Id: event_manager.php 12294 2009-08-15 13:14:21Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -437,7 +437,7 @@
 				if ( ($event->status == erSUCCESS || $event->status == erPERM_FAIL) && ($event->redirect === true || strlen($event->redirect) > 0)) {
 					// we need to pass category if the action was submitted to self-template, with the category passed
 					// and it has not explicly set redirect template or pass_cateogry param
-					if ($event->redirect === true && !isset($event->redirect_params['pass_category']) && $this->Application->GetVar('m_cat_id')) {
+					if ($event->redirect === true && !array_key_exists('pass_category', $event->redirect_params) && $this->Application->GetVar('m_cat_id')) {
 						$event->redirect_params['pass_category'] = 1;
 					}