Another stack trace

[John Wiegley]

Upgraded to spaetz/next today, starting seeing this:

--8<---------------cut here---------------start------------->8---
Syncing [Gmail]/Trash: IMAP -> MappedIMAP
ERROR [<InstanceLimitedThread(Folder sync [Gmail], started daemon 4427153408)>]: ERROR in syncfolder for Gmail folder [Gmail]/Trash: Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/offlineimap/accounts.py", line 366, in syncfolder
    localfolder.cachemessagelist()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/offlineimap/folder/UIDMaps.py", line 90, in cachemessagelist
    self._mb.cachemessagelist()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/offlineimap/folder/IMAP.py", line 166, in cachemessagelist
    '(FLAGS UID)')
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/offlineimap/imaplib2.py", line 738, in fetch
    return self._simple_command(name, message_set, message_parts, **kw)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/offlineimap/imaplib2.py", line 1594, in _simple_command
    return self._command_complete(self._command(name, *args), kw)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/offlineimap/imaplib2.py", line 1364, in _command_complete
    raise self.error('%s command error: %s %s. Data: %.100s' % (rqb.name, typ, dat, rqb.data))
error: FETCH command error: BAD ['Error in IMAP command FETCH: Invalid messageset']. Data: DPMM46 FETCH 1:* (FLAGS UID)


  FETCH command error: BAD ['Error in IMAP command FETCH: Invalid messageset']. Data: DPMM46 FETCH 1:* (FLAGS IUD)
--8<---------------cut here---------------end--------------->8---

This is after things were working for a while, so I'm not sure what I did to
get into this state.

John