The following slightly modified test case for mysql bug #58456 produces a wrong result in mariadb-5.3.5

CREATE TABLE t1 (
col_int INT,
col_int_key INT,
pk INT NOT NULL,
PRIMARY KEY (pk),
KEY col_int_key (col_int_key)
) ENGINE=InnoDB;

INSERT INTO t1 VALUES (NULL,1,1), (6,2,2), (5,3,3), (NULL,4,4);
INSERT INTO t1 VALUES (1,NULL,6), (8,5,7), (NULL,8,8), (8,NULL,5);

CREATE TABLE t2 (
pk INT PRIMARY KEY
) ENGINE=InnoDB;

INSERT INTO t2 VALUES (3), (8), (5);

SELECT t1.pk
FROM t2 LEFT JOIN t1 ON t2.pk = t1.col_int
WHERE t1.col_int_key BETWEEN 5 AND 6
AND t1.pk IS NULL OR t1.pk IN (5)
ORDER BY pk;

DROP TABLE t1,t2;

The SELECT of the test case returns an empty set though the expected result is:
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