Index: branches/version-2_13-dev/data/Smarty/templates/admin/order/edit.tpl
===================================================================
--- branches/version-2_13-dev/data/Smarty/templates/admin/order/edit.tpl	(revision 23323)
+++ branches/version-2_13-dev/data/Smarty/templates/admin/order/edit.tpl	(revision 23358)
@@ -98,5 +98,5 @@
         var product_index = parseInt(product_index);
         var input_quantity = $('input[name^="quantity[' + product_index + ']"]').val();
-        $('input[name^="shipment_quantity[0][' + product_index + ']"]').val(input_quantity);
+        $('input[name^="shipment_quantity[<!--{$top_shipping_id}-->][' + product_index + ']"]').val(input_quantity);
     }