多个赠品金额展示拆分

shopping-cart-application-service/src/main/java/cn/freemud/service/impl/BuyAndGiftsPromotionService.java

@@ -254,6 +254,7 @@ public class BuyAndGiftsPromotionService implements IPromotionService {
         if (CollectionUtils.isNotEmpty(cartGoods.getExtra()) && cartGoods.getQty() > 1) {
             int qty = cartGoods.getQty();
             cartGoods.setQty(1); //设置数量为1
+            cartGoods.setOriginalAmount(cartGoods.getOriginalPrice()); //金额直接使用单个商品的金额
             for (int i=1; i<qty; i++) {
                 CartGoods newRow = new CartGoods();
                 BeanUtils.copyProperties(cartGoods, newRow);