FIX: Sort Stock To Date on PMP

htdocs/product/stock/stockatdate.php

@@ -497,7 +497,7 @@ if ($mode == 'future') {
 	print_liste_field_titre('VirtualStock', $_SERVER["PHP_SELF"], '', $param, '', '', $sortfield, $sortorder, 'right ', 'VirtualStockDesc');
 } else {
 	print_liste_field_titre($stocklabel, $_SERVER["PHP_SELF"], '', $param, '', '', $sortfield, $sortorder, 'right ');
-	print_liste_field_titre("EstimatedStockValue", $_SERVER["PHP_SELF"], "estimatedvalue", '', $param, '', $sortfield, $sortorder, 'right ', $langs->trans("AtDate"), 1);
+	print_liste_field_titre("EstimatedStockValue", $_SERVER["PHP_SELF"], "currentvalue", '', $param, '', $sortfield, $sortorder, 'right ', $langs->trans("AtDate"), 1);
 	print_liste_field_titre("EstimatedStockValueSell", $_SERVER["PHP_SELF"], "", '', $param, '', $sortfield, $sortorder, 'right ', $langs->trans("AtDate"), 1);
 	print_liste_field_titre('', $_SERVER["PHP_SELF"]);
 	print_liste_field_titre('CurrentStock', $_SERVER["PHP_SELF"], $fieldtosortcurrentstock, $param, '', '', $sortfield, $sortorder, 'right ');