Allow explicit ordering by rank

Items are ordered by rank (i.e. you can drag+drop them and sort them manually) if no other ordering is applied to a list. This is very useful for prioritising things.

However, if you order by some field (status, assignee, etc.) then the rank ordering is lost entirely - there’s no way to order by status then by rank. This would often be useful. Please can you add rank as an explicit sort option? Or add it to the end of existing sorts to keep that working?