FIRST_V throw SQL Fehler (1292): Incorrect datetime value: ''

CREATE TABLE IF NOT EXISTS `fv_test` (

  `SOME_DATE` datetime NOT NULL

) ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO `aa`.`fv_test` (`SOME_DATE`) VALUES ('2017-07-20 12:47:56');

create table fv_result

SELECT 

FIRST_VALUE(SOME_DATE) OVER(ORDER BY SOME_DATE DESC) AS somedate

FROM fv_test;

SQL Fehler (1292): Incorrect datetime value: '' for column 'somedate'