Converting CONNECT -> InnoDB deletes data

MariaDB [test]> CREATE TABLE t (c INT NOT NULL) ENGINE=CONNECT;

Query OK, 0 rows affected, 2 warnings (0.13 sec)

Warning (Code 1105): No table_type. Will be set to DOS

Warning (Code 1105): No file name. Table will use t.dos

MariaDB [test]> INSERT INTO t VALUES (1), (2), (3);

Query OK, 3 rows affected (0.00 sec)

Records: 3  Duplicates: 0  Warnings: 0

MariaDB [test]> SELECT * FROM t;

+---+

| c |

+---+

| 1 |

| 2 |

| 3 |

+---+

3 rows in set (0.01 sec)

MariaDB [test]> ALTER TABLE t ENGINE = InnoDB;

Query OK, 1 row affected (0.71 sec)                

Records: 1  Duplicates: 0  Warnings: 0

MariaDB [test]> SELECT * FROM t;

+---+

| c |

+---+

| 0 |

+---+

1 row in set (0.01 sec)