Deleting a local folder while synchronizing its children (up or down) crashes

There are several cases:

• Deleting a local folder while its children are being created locally (downstream sync), causes the following:

  2013-02-25 11:58:54,141 3816 140285974947584 ERROR    nxdrive.synchronizer Failed to sync LastKnownState<local_folder=u'Nuxeo Drive', local_path=None, remote_name=u'JUCParis 2012 Nuxeo.v0.pdf', local_state=u'unknown', remote_state=u'created'>
  Traceback (most recent call last):
    File "/usr/local/lib/python2.7/dist-packages/nxdrive/synchronizer.py", line 757, in synchronize
      self.synchronize_one(pair_state, session=session)
    File "/usr/local/lib/python2.7/dist-packages/nxdrive/synchronizer.py", line 456, in synchronize_one
      local_info, remote_info)
    File "/usr/local/lib/python2.7/dist-packages/nxdrive/synchronizer.py", line 551, in _synchronize_remotely_created
      content=remote_client.get_content(doc_pair.remote_ref))
    File "/usr/local/lib/python2.7/dist-packages/nxdrive/client/local_client.py", line 157, in make_file
      with open(os_path, "wb") as f:
  IOError: [Errno 2] Aucun fichier ou dossier de ce type: u'/home/ataillefer/Nuxeo Drive/Test Joe/confs/Jenkins/JUCParis 2012 Nuxeo.v0.pdf'
  

• Deleting a local file or a folder while it is created remotely (upstream sync):

  2013-02-25 12:01:49,874 3816 140285974947584 ERROR    nxdrive.synchronizer Failed to sync LastKnownState<local_folder=u'Nuxeo Drive', local_path=u'/Test Joe/organisation/retour_BD.txt', remote_name=None, local_state=u'deleted', remote_state=u'unknown'>
  Traceback (most recent call last):
    File "/usr/local/lib/python2.7/dist-packages/nxdrive/synchronizer.py", line 757, in synchronize
      self.synchronize_one(pair_state, session=session)
    File "/usr/local/lib/python2.7/dist-packages/nxdrive/synchronizer.py", line 453, in synchronize_one
      doc_pair.pair_state, doc_pair)
  RuntimeError: ('Unhandled pair_state: %r for %r', u'unknown', LastKnownState<local_folder=u'Nuxeo Drive', local_path=u'/Test Joe/organisation/retour_BD.txt', remote_name=None, local_state=u'deleted', remote_state=u'unknown'>)