Incorrect sequence in view column processing created as select with ROLLUP and repeated columns in GROUP BY

CREATE TABLE t1 (a INT(10) NOT NULL, b INT(10) NOT NULL);

INSERT INTO t1 VALUES (1, 1);

INSERT INTO t1 VALUES (1, 2);

SELECT a, b,  a AS c, COUNT(*) AS count FROM t1 GROUP BY a, b, c WITH ROLLUP;

CREATE VIEW v1 as SELECT a, b,  a AS c,  COUNT(*) AS count FROM t1 GROUP BY a, b, c WITH ROLLUP;

SELECT * FROM v1;

DROP VIEW v1;

DROP TABLE t1;

SELECT a, b,  a AS c, COUNT(*) AS count FROM t1 GROUP BY a, b, c WITH ROLLUP;

a	b	c	count

1	1	1	1

1	1	NULL	1

1	2	1	1

1	2	NULL	1

1	NULL	NULL	2

NULL	NULL	NULL	2

CREATE VIEW v1 as SELECT a, b,  a AS c,  COUNT(*) AS count FROM t1 GROUP BY a, b, c WITH ROLLUP;

SELECT * FROM v1;

a	b	c	count

1	1	1	1

NULL	1	1	1

1	2	1	1

NULL	2	1	1

NULL	NULL	1	2

NULL	NULL	1	2

SELECT a, b,  a AS c, COUNT(*) AS count FROM t1 GROUP BY a, b, c WITH ROLLUP;

a	b	c	count

1	1	1	1

1	1	NULL	1

1	2	1	1

1	2	NULL	1

1	NULL	NULL	2

NULL	NULL	NULL	2

CREATE VIEW v1 as SELECT a, b,  a AS c,  COUNT(*) AS count FROM t1 GROUP BY a, b, c WITH ROLLUP;

SELECT * FROM v1;

a	b	c	count

1	1	1	1

1	1	NULL	1

1	2	1	1

1	2	NULL	1

1	NULL	NULL	2

NULL	NULL	NULL	2