Bulk INSERT into table without compression fails with ER_INTERNAL_ERROR

drop table if exists t2;

create table t2 (a int) engine=Columnstore comment 'compression=0';

insert into t2 select 1 from seq_1_to_300000;

alter table t2 add b int;

insert into t2 select 2, 3 from seq_1_to_300000;

MariaDB [db]> insert into t2 select 2, 3 from seq_1_to_300000;

ERROR 1815 (HY000): Internal error: PM1 : Bulkload Parse (thread 0) Failed for Table db.t2 during parse completion.  Terminating this job.