Removed null columns on delivery rack list

prs.desktop/Panels/Delivery/DeliveryRackList.cs

@@ -74,7 +74,8 @@ internal class DeliveryRackList : DynamicDataGrid<Shipment>, IMasterDetailContro
                 shipment.Delivery.Synchronise(Master);
             }
 
-            var items = new Client<DeliveryItem>().Query(filter).ToArray<DeliveryItem>();
+            var items = new Client<DeliveryItem>().Query(filter,
+                new Columns<DeliveryItem>(x => x.Delivery.ID).Add(x => x.ID)).ToArray<DeliveryItem>();
             foreach (var item in items)
             {
                 item.Delivery.ID = Master.ID;