CURRENT_TIMESTAMP should return a TIMESTAMP (WITH TIME ZONE?)

create table t1 as select now();

show create table t1;

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

| Table | Create Table                                                                           |

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

| t1    | CREATE TABLE `t1` (

  `now()` datetime NOT NULL

) ENGINE=MyISAM DEFAULT CHARSET=latin1 |

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

SET time_zone='Europe/Moscow';

CREATE OR REPLACE TABLE t1 (a TIMESTAMP);

SET timestamp=1288477526 /*summer time in Moscow*/;

INSERT INTO t1 VALUES (CURRENT_TIMESTAMP()), (COALESCE(CURRENT_TIMESTAMP()));

SET timestamp=1288477526+3599 /*winter time in Moscow*/;

INSERT INTO t1 VALUES (CURRENT_TIMESTAMP()), (COALESCE(CURRENT_TIMESTAMP()));

SELECT a, UNIX_TIMESTAMP(a) FROM t1;

DROP TABLE t1;

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

| a                   | UNIX_TIMESTAMP(a) |

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

| 2010-10-31 02:25:26 |        1288477526 |

| 2010-10-31 02:25:26 |        1288477526 |

| 2010-10-31 02:25:25 |        1288481125 | <-- this value is good

| 2010-10-31 02:25:25 |        1288477525 | <-- this value is wrong

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