INSERT .. SELECT into user-defined versioning columns does not produce error/warning

create table t (a int, s timestamp(6) as row start, e timestamp(6) as row end, period for system_time (s,e)) with system versioning;

insert into t (a) values (1);

--error ER_WARNING_NON_DEFAULT_VALUE_FOR_GENERATED_COLUMN

insert into t values (2,now(),from_unixtime(2147483647.999999));

--error ER_WARNING_NON_DEFAULT_VALUE_FOR_GENERATED_COLUMN

insert into t (a,s,e) values (2,now(),from_unixtime(2147483647.999999));

--error ER_WARNING_NON_DEFAULT_VALUE_FOR_GENERATED_COLUMN

insert into t (a,s,e) select a,s,e from t;

insert into t select * from t;

# Cleanup

drop table t;