--- a/t3lib/class.t3lib_tcemain.php	2012-09-02 16:51:00.000000000 +0200
+++ b/t3lib/class.t3lib_tcemain.php	2012-09-25 11:47:18.813593027 +0200
@@ -2398,6 +2398,13 @@
 				$valueArray = $dbAnalysis->getValueArray();
 					// Checking that the number of items is correct:
 				$valueArray = $this->checkValue_checkMax($tcaFieldConf, $valueArray);
+
+					// store updated sort order
+				if ($tcaFieldConf['foreign_sortby'] && $tcaFieldConf['foreign_table']) {
+					foreach ($valueArray as $sorting => $uid) {
+						$this->updateDB($tcaFieldConf['foreign_table'], $uid, array($tcaFieldConf['foreign_sortby'] => $sorting));
+					}
+				}
 					// If a valid translation of the 'keep' mode is active, update relations in the original(!) record:
 				if ($keepTranslation) {
 					$this->updateDB($table, $transOrigPointer, array($field => implode(',', $valueArray)));