Tables T1 and t1 do not work well with ENGINE=CSV and lower-case-table-names=0

CREATE OR REPLACE TABLE t1 (a INT NOT NULL) ENGINE=CSV;

CREATE OR REPLACE TABLE T1 (a INT NOT NULL) ENGINE=CSV;

INSERT INTO t1 VALUES (10);

INSERT INTO T1 VALUES (20);

SELECT * FROM t1;

+----+

| a  |

+----+

| 10 |

| 20 |

+----+