Server crash with particular SQL sequence

Both of these sql sequences cause server crashes:

first:
DROP TABLE IF EXISTS t1;

CREATE TABLE t1 (
`ID` VARCHAR(1) NOT NULL,
`f1` VARCHAR(1),
`f2` VARCHAR(1),
`f3` DATE,
`f4` VARCHAR(1) AS (`f1` IN ('1','2') AND `f3`<CURDATE()) VIRTUAL,
PRIMARY KEY (`ID`)
)
ENGINE=Aria;

SELECT ID, f4 FROM t1;

ALTER TABLE t1 CHANGE COLUMN `ID` `ID` VARCHAR(2);

second:
DROP TABLE IF EXISTS t1;

CREATE TABLE t1 (
`ID` VARCHAR(1) NOT NULL,
`f1` VARCHAR(1),
`f2` VARCHAR(1),
`f3` DATE,
`f4` VARCHAR(1) AS (`f1` IN ('1','2') AND `f3`<CURDATE()) VIRTUAL
)
ENGINE=Aria;

SELECT ID, f4 FROM t1;

INSERT INTO t1 (ID,f1,f2,f3) VALUES (1,'','',CURDATE());

SELECT ID, f4 FROM t1;

In both cases the problem occurs if I make a select before modifying the data or the structure. Both with Aria and InnoDB engines.