Yes, I realized (from several "help, the app broke in 1.6!!!" messages) that a fairly common scenario is:
- To use sort by unread first (or unread + starred)
- To swipe though messages
- And to want to mark some of them read, saving "for later", leaving others marked as read "all done, no need to do anything else".
And yes, this very convenient pattern was broken and so I made some changes.