Hi

> This seems to be true for me also. Strange that I never noticed before.
> Am I right in thinking that patch
>
>    id:1433843467-32398-1-git-send-email-markwalters1009@gmail.com
>
> is directed to fix this?

Yes that is correct. What happened is that the tree code relied on the
message-pane (a show buffer) to mark the message read, but updated its
own display. After the unread handling changes the show buffer only marks a
message read if it is the active buffer (so its post-command hook gets
called), so it no longer removes the unread tag.

Best wishes

Mark

(PS this message shows the deficiencies in our emacs reply handling: it
doesn't include the rfc822 part!)