Assertion `fld->field_no < table->n_v_def' failed on cascade FK update of table with vcol index in parent

--source include/have_debug_sync.inc

--source include/have_innodb.inc

--connect (con2, localhost, root,,)

--connection default

set default_storage_engine= innodb;

create table t1 (a int primary key, b int as (a), key(b));

insert into t1(a) values (1),(2),(3);

create table t2 (a int, foreign key (a) references t1 (a)

  on delete cascade on update cascade);

insert into t2(a) values (1),(2),(3);

set debug_sync= "find_table_for_vc_table_valid SIGNAL found WAIT_FOR go";

UPDATE t1 set a = 11 where a = 1;

--send

UPDATE t1 set a = 22 where a = 2;

--connection con2

set debug_sync= "now WAIT_FOR found TIMEOUT 3";

UPDATE t1 set a= 33 where a = 3;

set debug_sync= "now SIGNAL go";

--connection default

--reap

# Cleanup

drop table t1, t2;

set debug_sync= reset;

--connection default