IMAP/POP cache folder recovery

IMAP/POP cache folders are auto-saved and Emacs can recover them either manually or automatically through the "desktop" feature. This is a bad idea because there is no way to recover all the changes that have been made to the cache folders in the previous session. Perhaps auto-saving should be disabled?

Robert Marshall reports (viewmail-info, 2014-11-04)
I've used desktop.el as a means of getting emacs pre-loaded with all the
files I want and have normally made sure that when I exit emacs I close
down any vm buffers first. Recently emacs desktop has changed so that
the current state of emacs is saved on the fly and thus if emacs crashes,
on a restart my vm imap cache files are loaded but they don't
appear as a VM INBOX

The desktop file entry looks ok
(desktop-create-buffer 206
  "/home/robert/Mail/imap-cache-10fa627ba88db87c673417642ff5d908"
  "INBOX"
  'vm-mode
  '(hi-lock-mode)
  71693785
  '(nil nil)
  t
  nil
  '((buffer-file-coding-system . raw-text-unix)))
I'm guessing that the buffer creation doesn't know how the connection is
to be made to whatever server is being used?