Index: branches/5.3.x/core/kernel/session/session.php
===================================================================
diff -u -N -r15928 -r15974
--- branches/5.3.x/core/kernel/session/session.php	(.../session.php)	(revision 15928)
+++ branches/5.3.x/core/kernel/session/session.php	(.../session.php)	(revision 15974)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: session.php 15928 2013-07-30 10:03:45Z alex $
+* @version	$Id: session.php 15974 2013-10-03 12:12:52Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -851,12 +851,12 @@
 	{
 		$wid = $this->Application->GetVar('m_wid');
 
-		$last_env = $this->getLastTemplateENV($t, Array ('m_opener' => 'u'));
+		$last_env = $this->getLastTemplateENV($t, array('m_opener' => 'u'));
 		$last_template = basename($_SERVER['PHP_SELF']) . '|' . $last_env;
 		$this->StoreVar(rtrim('last_template_' . $wid, '_'), $last_template);
 
 		// prepare last_template for opener stack, module & session could be added later
-		$last_env = $this->getLastTemplateENV($t, null, false);
+		$last_env = $this->getLastTemplateENV($t);
 		$last_template = basename($_SERVER['PHP_SELF']) . '|' . $last_env;
 
 		// save last_template in persistent session
@@ -920,27 +920,19 @@
 		}
 	}
 
-	function getLastTemplateENV($t, $params = null, $encode = true)
+	protected function getLastTemplateENV($t, $params = null)
 	{
 		if (!isset($params)) {
 			$params = Array ();
 		}
 
-		$params['__URLENCODE__'] = 1; // uses "&" instead of "&amp;" for url part concatenation + replaces "\" to "%5C" (works in HTML)
-
-
 		if ($this->Application->GetVar('admin') && !array_key_exists('admin', $params) && !defined('EDITING_MODE')) {
 			$params['editing_mode'] = ''; // used in kApplication::Run
 		}
 
 		$params = array_merge($this->Application->getPassThroughVariables($params), $params);
-		$ret = $this->Application->BuildEnv($t, $params, 'all', false, false);
 
-		if (!$encode) {
-			// cancels 2nd part of replacements, that URLENCODE does
-			$ret = str_replace('%5C', '\\', $ret);
-		}
-		return $ret;
+		return $this->Application->BuildEnv($t, $params, 'all', false, false);
 	}
 
 	/**