Doris 2.1.6删除workload group后，information_schema.workload_group_privileges查询权限报错

Doris 2.1.6 测试workload group，删除一个group后，
select * from information_schema.workload_group_privileges;
用这个语句查询权限时，报错：SQL 错误 [1105] [HY000]: errCode = 2, detailMessage = Workload group g1 does not exist