availability.available module ignores the date parameter

The availability.available module ignores the start_date parameter and returns the user's next date with Future Availability set. For example, I set the start_date to April 28, 2018 and data for April 15th was returned.

From what can tell from the documentation, it should return the future and weekly availability data for the specific start_date.

Also, user is not listed as a required parameter, but leaving it out returns no data:

[data] => Array
        (
            [type] => weekly
            [availability] => Array
                (
                )