Window Lag function returning different result under from MySQL-8.0

CREATE TABLE aggregates

(

  `date` date,

  `ticker` varchar(3),

  l float,

  is_fs tinyint(1)

);

INSERT INTO aggregates

VALUES

	('2016-08-02', 'GFF', 16.75, NULL),

	('2016-08-24', 'GFF', 16.75, NULL),

    ('2016-09-16', 'GFF', 16.75, NULL),

    ('2016-01-06', 'GFF', 16.75, NULL),

    ('2016-10-10', 'GFF', 16.75, NULL);

SELECT 

(1=1) 

AND 

(

    (LAG(l) OVER (PARTITION BY ticker ORDER BY date) > 1 AND 1=1) 

OR (LAG(l) OVER (PARTITION BY ticker ORDER BY date) > 1 AND 1=1)

)

AS is_fs FROM `aggregates` WHERE YEAR(date) = 2016 AND ticker = 'GFF' ORDER BY is_fs DESC

NULL

NULL

NULL

NULL

NULL

1

1

1

1

NULL