fix 更换车票

netflix-service/src/main/java/com/cyksj/service/mange/impl/CmsOrderDonServiceImpl.java

@@ -396,10 +396,10 @@ public class CmsOrderDonServiceImpl extends ServiceImpl<OrderDonMapper,OrderDon>
     public void changeRelation(ChangeRelationReq req) throws Exception {
         Long relationId = req.getRelationId();
         Long groupId = req.getGroupsId();
-        Long yhsId = req.getYhsId();
         UserTicketClearedRecord.Source source = req.getSource();
         if (source == null) source = UserTicketClearedRecord.Source.change_ticket;
         GroupsRelation relation = relationMapper.selectById(relationId);
+        Long yhsId = relation.getYhsId();
         Assert.notNull(relation, "车票已不存在");
         if (relation.getRechargeStatus() != null) {
             throw BusinessRuntimeException.getInstance("代充账号车票无法更换车票");