Please describe the problem:
I have threaded mail view enabled in some folders. New mail is moved into these folders via filters. In Evolution 2.10 the mail threads with new email were expanded. In Evolution 2.12 the mail threads with new email are folded and have to be expanded manually before the new emails can be read. Jumping to unread emails with "]" skips the new emails while the thread is folded.

The menu item "view/expand all threads" does not expand all threads: some threads are completely expanded, in others only the top-level is expanded.


Steps to reproduce:
1. set a folder to "threaded view"
2. receive new email into that folder (via filters?)
3. check whether new mails are visible in their mail thread
4. invoke "view/expand all threads"


Actual results:
After 3. new emails are hidden in folded threads.

After 4. some of the threads are still (partially) folded.

Expected results:
All new email should be visible and reachable in the folder view without having to unfold threads.

Unfolding all threads should completely unfold all threads.

Does this happen every time?
Yes. I have not tried it in the inbox folder.


Other information:
The "new email" problem is a change since 2.10: I just switched from 2.10 to 2.12 (both compiled via Garnome) and this immediately caught my attention because it broke my work flow. I consider it a regression. If it was intentional, please provide a configuration option so that I can get the old behavior back.