server: inconsistency happens during benchmarksql tests

[cfzjywxk]

Inconsistency happens on the table bmsql_new_order, the handle seems to have fewer data compared with the primary key index

admin check table bmsql_new_order;
ERROR 1105 (HY000): handle 128987, index:types.Datum{k:0x1, collation:0x0, decimal:0x0, length:0x0, i:11, b:[]uint8(nil), x:interface {}(nil)} != record:<nil>

select count(*) from bmsql_new_order;
+----------+
| count(*) |
+----------+
|   452721 |
+----------+
1 row in set (0.13 sec)

select count(*) from bmsql_new_order use index(primary);
+----------+
| count(*) |
+----------+
|   474515 |
+----------+
1 row in set (0.14 sec)

[cfzjywxk]

Can't reproduce using dead loop fixed tidb-server binary tidb-branch