Index: trunk/core/units/categories/cache_updater.php
===================================================================
diff -u -N -r8815 -r8860
--- trunk/core/units/categories/cache_updater.php	(.../cache_updater.php)	(revision 8815)
+++ trunk/core/units/categories/cache_updater.php	(.../cache_updater.php)	(revision 8860)
@@ -293,6 +293,7 @@
 			$this->Conn->Query('DROP TABLE IF EXISTS '.$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\'');
 		}
 
 		function DoTheJob()