Index: branches/5.2.x/core/kernel/utility/unit_config_reader.php
===================================================================
diff -u -N -r15033 -r15073
--- branches/5.2.x/core/kernel/utility/unit_config_reader.php	(.../unit_config_reader.php)	(revision 15033)
+++ branches/5.2.x/core/kernel/utility/unit_config_reader.php	(.../unit_config_reader.php)	(revision 15073)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: unit_config_reader.php 15033 2012-01-10 14:39:36Z alex $
+* @version	$Id: unit_config_reader.php 15073 2012-01-18 14:25:18Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -336,7 +336,10 @@
 	 */
 	function ReReadConfigs()
 	{
+		// don't reset prefix file, since file scanning could slow down the process
+		$prefix_files_backup = $this->prefixFiles;
 		$this->Application->cacheManager->EmptyUnitCache();
+		$this->prefixFiles = $prefix_files_backup;
 
 		// parse all configs
 		$this->ProcessAllConfigs = true;