A slight twist on this would be to add a 'type' for each status, where it would fall under 'new', 'open', 'confirmed', 'fixed', 'closed', where 'open' would be for things such as Awaiting feedback or something and 'closed' would be for things such as 'Duplicate' or 'Not a bug', then could filter based on the type of status as an alternative to the status itself.