Index: branches/5.2.x/core/kernel/kbase.php
===================================================================
diff -u -N -r16309 -r16419
--- branches/5.2.x/core/kernel/kbase.php	(.../kbase.php)	(revision 16309)
+++ branches/5.2.x/core/kernel/kbase.php	(.../kbase.php)	(revision 16419)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: kbase.php 16309 2016-01-17 11:49:55Z alex $
+* @version	$Id: kbase.php 16419 2016-11-13 21:39:22Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -517,7 +517,7 @@
 			return ;
 		}
 
-		if ( !isset($forms[$this->formName]) ) {
+		if ( !array_key_exists($this->formName, $forms) ) {
 			trigger_error('Form "<strong>' . $this->formName . '</strong>" isn\'t declared in "<strong>' . $this->Prefix . '</strong>" unit config.', E_USER_NOTICE);
 		}
 		else {
Index: branches/5.2.x/index.php
===================================================================
diff -u -N -r16418 -r16419
--- branches/5.2.x/index.php	(.../index.php)	(revision 16418)
+++ branches/5.2.x/index.php	(.../index.php)	(revision 16419)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: index.php 16418 2016-11-13 21:33:46Z alex $
+* @version	$Id: index.php 16419 2016-11-13 21:39:22Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL