问题修复

shopping-cart-application-service/src/main/java/cn/freemud/service/impl/mcoffee/calculation/CouponDiscountCalculation.java

@@ -287,7 +287,11 @@ public class CouponDiscountCalculation {
                     int index2 = nowCartGoodsList.indexOf(cartGoods);
                     if(index2 < i) {
                         changed.set(true);
-                        nowCartGoodsList.get(index2).setQty(nowCartGoodsList.get(index2).getQty() + cartGoods.getQty());
+                        CartGoods cartGoodsNow = nowCartGoodsList.get(index2);
+                        cartGoodsNow.setQty(cartGoodsNow.getQty() + cartGoods.getQty());
+                        cartGoodsNow.setAmount(cartGoodsNow.getAmount() + cartGoods.getAmount());
+                        cartGoodsNow.setMaterialAmount(cartGoodsNow.getMaterialAmount() + cartGoods.getMaterialAmount());
+                        cartGoodsNow.setOriginalAmount(cartGoodsNow.getOriginalAmount() + cartGoods.getOriginalAmount());
                         nowCartGoodsList.remove(i);
                     }
                     ApiLog.debug("合并买3赠1商品券 【merge-ing】 : {} ", JSONObject.toJSONString(nowCartGoodsList));