More stack traces

[John Wiegley]

>>>>> Nicolas Sebrecht <nicolas.s-dev at laposte.net> writes:

> Could you please update your next branch (from nicolas33) and test again?

I set my branch to nicolas33/next, and although the other stack trace did
disappear, I got this instead:

--8<---------------cut here---------------start------------->8---
Deleting 817 messages (94:910) in MappedIMAP[Lists.WG21.Reflector]
ERROR [<InstanceLimitedThread(Folder sync [Gmail], started daemon 4435517440)>]: Syncing folder Lists/WG21/Reflector [acc: Gmail]
  94L
ERROR [<InstanceLimitedThread(Folder sync [Gmail], started daemon 4435517440)>]: ERROR in syncfolder for Gmail folder Lists/WG21/Reflector: Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/offlineimap/accounts.py", line 350, in syncfolder
    remotefolder.syncmessagesto(localfolder, statusfolder)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/offlineimap/folder/Base.py", line 431, in syncmessagesto
    action(dstfolder, statusfolder)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/offlineimap/folder/Base.py", line 346, in syncmessagesto_delete
    folder.deletemessages(deletelist)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/offlineimap/folder/UIDMaps.py", line 253, in deletemessages
    self._mb.deletemessages(self._uidlist(self.r2l, uidlist))
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/offlineimap/folder/UIDMaps.py", line 87, in _uidlist
    return [mapping[x] for x in items]
KeyError: 94L

  94L
--8<---------------cut here---------------end--------------->8---

I see this trace off and on every few days.  I've never been able to reproduce
it -- since it doesn't happen on the subsequent run -- but it does happen
fairly often.

Thanks,
  John