[Bug 33725] UW-IMAP folder handling somewhat broken

[Hezekiah Carty]

Public bug reported:
https://launchpad.net/malone/bugs/33725

Affects: evolution (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

Description:
Evolution doesn't seem to be able to properly handle IMAP folders on
servers such as UW-IMAP which only allow messages OR folders in a given
folder.  It gives an error (IMAP command failed: SELECT failed: Can't
open AOSC: not a selectable mailbox) when you try to select one of these
folder-containing folders.

For example, I have a "Mailing Lists" folder in my IMAP account which
holds folders containing messages from various mailing lists.  If I
click on this folder in the mail menu in Evolution, the above error
message pops up.  KMail, Thunderbird, mutt, and just about every other
IMAP client I've tried seems to be able to get it right except for
Evolution.