Index: branches/5.1.x/core/units/helpers/language_import_helper.php
===================================================================
diff -u -N -r13151 -r13168
--- branches/5.1.x/core/units/helpers/language_import_helper.php	(.../language_import_helper.php)	(revision 13151)
+++ branches/5.1.x/core/units/helpers/language_import_helper.php	(.../language_import_helper.php)	(revision 13168)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: language_import_helper.php 13151 2010-01-30 17:40:21Z alex $
+* @version	$Id: language_import_helper.php 13168 2010-02-24 17:26:57Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -103,6 +103,13 @@
 		 */
 		var $_latestVersion = 2;
 
+		/**
+		 * Prefix-based serial numbers, that should be changed after import is finished
+		 *
+		 * @var Array
+		 */
+		var $changedPrefixes = Array ();
+
 		function LanguageImportHelper()
 		{
 			parent::kHelper();
@@ -166,7 +173,12 @@
 			}
 
 			$this->_initImportTables(true);
+			$this->changedPrefixes = array_unique($this->changedPrefixes);
 
+			foreach ($this->changedPrefixes as $prefix) {
+				$this->Application->incrementCacheSerial($prefix);
+			}
+
 			if ($this->_debugMode) {
 				$this->Application->Debugger->appendHTML(__CLASS__ . '::' . __FUNCTION__ . '("' . $filename . '"): ' . (getmicrotime() - $start_time));
 			}
@@ -331,6 +343,9 @@
 						FROM ' . $this->_tables[$prefix] . '
 						WHERE ' . $unique_field . ' IN (' . implode(',', $to_insert) . ')';
 				$this->Conn->Query($sql);
+
+				// new records were added
+				$this->changedPrefixes[] = $prefix;
 			}
 
 			// perform update for records, that are present in live table
@@ -370,6 +385,11 @@
 				}
 
 				$this->Conn->Query($sql);
+
+				if ($this->Conn->getAffectedRows() > 0) {
+					// existing records were updated
+					$this->changedPrefixes[] = $prefix;
+				}
 			}
 		}