Fixed loading of saved vouchers.

shop/shopservice.cpp

@@ -60,10 +60,6 @@ void ShopService::calculate(VoucherPtr voucher)
 
     loadSettings();
 
-    if (voucher->items().isEmpty()) {
-        load(voucher);
-    }
-
     foreach (QSharedPointer<VoucherItem> item, voucher->items()) {
 
         if (item->refId() == ROUNDING_ITEM)
@@ -384,6 +380,9 @@ void ShopService::moveItems(QList<VoucherItemPtr> items, VoucherPtr source, Vouc
         it->setVoucher(target);
     }
 
+    calculate(target);
+    update(target, &session);
+
     if (source->items().isEmpty())
     {
         erase(source, &session);