Unexpected type of column: Nullable(Nothing)

[lilinghai]

create table t(a int);
alter table t set tiflash replica 2;
select count(*) from t group by a having ifnull(null,count(*)) and min(null); -- expect successfully 
-- but got  ERROR 1105 (HY000): other error for mpp stream: DB::Exception: Unexpected type of column: Nullable(Nothing)
/*
explain select count(*) from t group by a having ifnull(null,count(*)) and min(null);
+----------------------------------------+----------+-------------------+---------------+---------------------------------------------------------------------------------+
| id                                     | estRows  | task              | access object | operator info                                                                   |
+----------------------------------------+----------+-------------------+---------------+---------------------------------------------------------------------------------+
| TableReader_44                         | 6400.00  | root              |               | data:ExchangeSender_43                                                          |
| └─ExchangeSender_43                    | 6400.00  | batchCop[tiflash] |               | ExchangeType: PassThrough                                                       |
|   └─Projection_7                       | 6400.00  | batchCop[tiflash] |               | Column#3                                                                        |
|     └─Selection_35                     | 6400.00  | batchCop[tiflash] |               | Column#3, Column#4                                                              |
|       └─Projection_39                  | 8000.00  | batchCop[tiflash] |               | Column#3, Column#4                                                              |
|         └─HashAgg_40                   | 8000.00  | batchCop[tiflash] |               | group by:rs.t.a, funcs:sum(Column#12)->Column#3, funcs:min(Column#13)->Column#4 |
|           └─ExchangeReceiver_42        | 8000.00  | batchCop[tiflash] |               |                                                                                 |
|             └─ExchangeSender_41        | 8000.00  | batchCop[tiflash] |               | ExchangeType: HashPartition, Hash Cols: [name: rs.t.a, collate: binary]         |
|               └─HashAgg_37             | 8000.00  | batchCop[tiflash] |               | group by:rs.t.a, funcs:count(1)->Column#12, funcs:min(NULL)->Column#13          |
|                 └─TableFullScan_25     | 10000.00 | batchCop[tiflash] | table:t       | keep order:false, stats:pseudo                                                  |
+----------------------------------------+----------+-------------------+---------------+---------------------------------------------------------------------------------+
*/

master nightly UTC Build Time: 2021-11-01 11:05:32
tidb 01e4bdd72361f287a25884bcc41301e3aa6c85eb
tiflash 7f5b61e