multi-statement detection is not working for create procedure

select 1; CREATE PROCEDURE doiterate(p1 INT)
BEGIN
label1: LOOP
SET p1 = p1 + 1;
IF p1 < 10 THEN ITERATE label1; END IF;
LEAVE label1;
END LOOP label1;
END;

The create procedure has multiple statements, and there's `if else end if` clause.
The current logic seems not correct in handling SQL above.