fix: 优惠券使用修改

src/main/java/com/chaozhanggui/system/cashierservice/service/CartService.java

@@ -1606,6 +1606,7 @@ public class CartService {
         orderDTO.setUserCouponInfos(useCouponDTO.getUserCouponInfos());
         orderDTO.setOnlyChangeCoupon(true);
         orderDTO.setPointsNum(useCouponDTO.getPointsNum());
+        orderDTO.setOrderId(useCouponDTO.getOrderId());
         return createOrder(orderDTO);
     }
 }