Index: branches/5.1.x/core/units/categories/cache_updater.php
===================================================================
diff -u -r13086 -r13168
--- branches/5.1.x/core/units/categories/cache_updater.php	(.../cache_updater.php)	(revision 13086)
+++ branches/5.1.x/core/units/categories/cache_updater.php	(.../cache_updater.php)	(revision 13168)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: cache_updater.php 13086 2010-01-12 19:47:40Z alex $
+* @version	$Id: cache_updater.php 13168 2010-02-24 17:26:57Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -322,10 +322,13 @@
 
 		function clearData()
 		{
+			// some templates use this
+			$this->Conn->Query('UPDATE '.TABLE_PREFIX.'ConfigurationValues SET VariableValue = VariableValue+1 WHERE VariableName = \'CategoriesRebuildSerial\'');
+
+			// always drop temporary tables
 			$this->Conn->Query('DROP TABLE IF EXISTS '.$this->progressTable);
 			$this->Conn->Query('DROP TABLE IF EXISTS '.$this->permCacheTable);
-			$this->Conn->Query('DELETE FROM '.TABLE_PREFIX.'Cache WHERE VarName = \'ForcePermCacheUpdate\'');
-			$this->Conn->Query('UPDATE '.TABLE_PREFIX.'ConfigurationValues SET VariableValue = VariableValue+1 WHERE VariableName = \'CategoriesRebuildSerial\'');
+			$this->Application->deleteDBCache('ForcePermCacheUpdate');
 		}
 
 		function SaveData()
@@ -338,6 +341,8 @@
 					FROM '.$this->permCacheTable;
 			$this->Conn->Query($sql);
 			$this->clearData();
+
+			$this->Application->incrementCacheSerial('c');
 		}
 
 		function DoTheJob()
@@ -449,6 +454,10 @@
 			}
 
 			$this->Conn->doUpdate($fields_hash, TABLE_PREFIX.'Category', 'CategoryId = '.$data['current_id']);
+
+			if ($this->Conn->getAffectedRows() > 0) {
+				$this->Application->incrementCacheSerial('c', $data['current_id']);
+			}
 		}
 
 		function QueryTitle(&$data)