fix:初始化优惠券精度问题

cooleshow-mall/mall-portal/src/main/java/com/yonge/cooleshow/portal/service/impl/OmsPortalOrderServiceImpl.java

@@ -176,6 +176,7 @@ public class OmsPortalOrderServiceImpl implements OmsPortalOrderService {
             orderItem.setGiftIntegration(cartPromotionItem.getIntegration());
             orderItem.setGiftGrowth(cartPromotionItem.getGrowth());
             orderItem.setPromoterId(cartPromotionItem.getPromoterId());
+            orderItem.setPrecisionAmount(BigDecimal.ZERO);
             orderItemList.add(orderItem);
         }
         //判断购物车中商品是否都有库存