Index: trunk/core/units/general/cat_dbitem_export.php
===================================================================
diff -u -r3629 -r3642
--- trunk/core/units/general/cat_dbitem_export.php	(.../cat_dbitem_export.php)	(revision 3629)
+++ trunk/core/units/general/cat_dbitem_export.php	(.../cat_dbitem_export.php)	(revision 3642)
@@ -192,10 +192,19 @@
 					}
 					else {
 						$check_fields = $this->exportOptions['DuplicateCheckFields'] ? explode('|', substr($this->exportOptions['DuplicateCheckFields'], 1, -1)) : Array();
+						$object =& $event->getObject();
+						
+						$language_id = $this->Application->GetDefaultLanguageId();
 						foreach ($check_fields as $index => $check_field) {
-							// get field name from kMultilanguage formatter
+							foreach ($object->Fields as $field_name => $field_options) {
+								if ($field_name == 'l'.$language_id.'_'.$check_field) {
+									$check_fields[$index] = 'l'.$language_id.'_'.$check_field;
+									break;
+								}
+							}
 						}
 					}
+					$this->exportOptions['DuplicateCheckFields'] = $check_fields;
 					
 					if (!$check_fields) {
 						$object->setError('CheckDuplicatesMethod', 'required');
@@ -563,7 +572,7 @@
 					$load_keys = Array($this->curItem->IDField => $this->curItem->GetID());
 				}
 				else {
-					$key_fields = explode('|', substr($this->exportOptions['DuplicateCheckFields']) );
+					$key_fields = $this->exportOptions['DuplicateCheckFields'];
 					foreach ($key_fields as $key_field) {
 						$load_keys[$key_field] = $this->curItem->GetDBField($key_field);
 					}
@@ -592,9 +601,12 @@
 			$tmp_item->SetDBFieldsFromHash($this->curItem->FieldValues);
 			if( ($save_method == 'Update') && $resource_id ) {
 				$tmp_item->SetDBField('ResourceId', $resource_id);
+				$tmp_item->setID($item_id);
 			}
 			
-			if (!$tmp_item->$save_method()) return false;
+			if (!$tmp_item->$save_method()) {
+				return false;
+			}
 			
 			if ( ($save_method == 'Create') && $this->exportOptions['ReplaceDuplicates'] ) {
 				// map new id to old id