Virtual columns depending on system function work incorrectly with query cache

MariaDB [test]> SET GLOBAL query_cache_type= ON;

Query OK, 0 rows affected (0.00 sec)

MariaDB [test]> SET query_cache_type= ON;

Query OK, 0 rows affected (0.00 sec)

MariaDB [test]> 

MariaDB [test]> CREATE TABLE t1 (d DATE, dv DATE AS (CURDATE()));

Query OK, 0 rows affected (0.18 sec)

MariaDB [test]> INSERT INTO t1 (d) VALUES (CURDATE());

Query OK, 1 row affected (0.04 sec)

MariaDB [test]> SELECT d, dv FROM t1;

+------------+------------+

| d          | dv         |

+------------+------------+

| 2017-10-11 | 2017-10-11 |

+------------+------------+

1 row in set (0.00 sec)

MariaDB [test]> SET timestamp = @@timestamp + 3600*24;

Query OK, 0 rows affected (0.00 sec)

MariaDB [test]> SELECT d, dv FROM t1;

+------------+------------+

| d          | dv         |

+------------+------------+

| 2017-10-11 | 2017-10-11 |

+------------+------------+

1 row in set (0.00 sec)

MariaDB [test]> ANALYZE TABLE t1;

+---------+---------+----------+----------+

| Table   | Op      | Msg_type | Msg_text |

+---------+---------+----------+----------+

| test.t1 | analyze | status   | OK       |

+---------+---------+----------+----------+

1 row in set (0.08 sec)

MariaDB [test]> SELECT d, dv FROM t1;

+------------+------------+

| d          | dv         |

+------------+------------+

| 2017-10-11 | 2017-10-12 |

+------------+------------+

1 row in set (0.00 sec)

SET GLOBAL query_cache_type= ON;

SET query_cache_type= ON;

CREATE TABLE t1 (d DATE, dv DATE AS (CURDATE()));

INSERT INTO t1 (d) VALUES (CURDATE());

SELECT d, dv FROM t1;

SET timestamp = @@timestamp + 3600*24;

SELECT d, dv FROM t1;

ANALYZE TABLE t1;

SELECT d, dv FROM t1;

DROP TABLE t1;

SET GLOBAL query_cache_type= DEFAULT;