DROP TABLE on table with vector key not atomic, leads to ER_NO_SUCH_TABLE_IN_ENGINE

--source include/have_innodb.inc

--let $datadir= `select @@datadir`

CREATE TABLE t1 (pk INT PRIMARY KEY, v VECTOR(1) NOT NULL, VECTOR(v)) ENGINE=InnoDB;

--list_files $datadir/test/ t1*

CREATE TABLE t2 (a INT, FOREIGN KEY (a) REFERENCES t1 (pk)) ENGINE=InnoDB;

--error ER_ROW_IS_REFERENCED_2

DROP TABLE t1;

SHOW CREATE TABLE t1;

--list_files $datadir/test/ t1*

INSERT INTO t1 VALUES (1,0x31313131);

# Cleanup

DROP TABLE t2, t1;

CREATE TABLE t1 (pk INT PRIMARY KEY, v VECTOR(1) NOT NULL, VECTOR(v)) ENGINE=InnoDB;

t1#i#01.ibd

t1.frm

t1.ibd

CREATE TABLE t2 (a INT, FOREIGN KEY (a) REFERENCES t1 (pk)) ENGINE=InnoDB;

DROP TABLE t1;

ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails

SHOW CREATE TABLE t1;

Table	Create Table

t1	CREATE TABLE `t1` (

  `pk` int(11) NOT NULL,

  `v` vector(1) NOT NULL,

  PRIMARY KEY (`pk`),

  VECTOR KEY `v` (`v`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci

t1.frm

t1.ibd

INSERT INTO t1 VALUES (1,0x31313131);

mysqltest: At line 12: query 'INSERT INTO t1 VALUES (1,0x31313131)' failed: ER_NO_SUCH_TABLE_IN_ENGINE (1932): Table 'test.t1' doesn't exist in engine