When calling ** Expected behaviour ** ``` xs = [(-1, '23456789')] post = take_last_while(lambda i: i[0] == 0, xs) assert post == [] ``` ** Current behaviour ** ``` xs = [(-1, '23456789')] post = take_last_while(lambda i: i[0] == 0, xs) assert post == [(-1, '23456789')] ```