梳理拆单逻辑的子订单应收原收费值不继承母订单的值，初始化为0

yudao-module-order/yudao-module-order-core/src/main/java/cn/iocoder/yudao/module/order/service/orderSplit/OrderSplitServiceImpl.java

@@ -1139,6 +1139,10 @@ public class OrderSplitServiceImpl extends AbstractService<OrderSplitMapper, Ord
                 newOrderItemDO.setChargeQuantity(orderSplitItemBackVO.getChargeQuantity());
                 newOrderItemDO.setChargeWeight(orderSplitItemBackVO.getChargeWeight());
                 newOrderItemDO.setChargeVolume(orderSplitItemBackVO.getChargeVolume());
+                newOrderItemDO.setOrgChargeNum(0);
+                newOrderItemDO.setOrgChargeQuantity(BigDecimal.ZERO);
+                newOrderItemDO.setOrgChargeWeight(BigDecimal.ZERO);
+                newOrderItemDO.setOrgChargeVolume(BigDecimal.ZERO);
                 if (splitSeparateOrder) {
                     // 独立订单, 重置原有特价
                     // TODO 是否排除出货相关拆单的主拆单订单，因为出货阶段的主拆单订单是走的原单业务