Consume modal displays the 'disposition reason' section.  The new/edit bottle page also displays the 'disposition reason' section, but only when the availability is set to false (and the bottle is not a 'rating only' bottle.  The show/hide of the disposition section on the edit bottle page is handled through css and JavaScript
The 'disposition reason' radio buttons now default to the database value or to 'consumed' if the existing database value is nil