fix均摊重复

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

@@ -116,7 +116,7 @@ public class MaterialPromotionService implements IPromotionService {
             for (ShoppingCartGoodsDto.CartGoodsDetailDto.MaterialGoods materialGoods : product.getMaterialList()) {
                 product.setSalePrice(product.getSalePrice() + materialGoods.getSalePrice());//现金
                 product.setOriginalPrice(product.getOriginalPrice() + materialGoods.getOriginalPrice());
-                product.setTotalDiscountAmount(product.getTotalDiscountAmount() + materialGoods.getTotalDiscountAmount() * product.getQty());
+                product.setTotalDiscountAmount(product.getTotalDiscountAmount() + materialGoods.getTotalDiscountAmount());
                 product.setProductType(GoodsTypeEnum.MATERIAL.getGoodsType());
             }
         }