Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 406, in dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 237, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/web_ui/browser.py", line 148, in process_request
    self._render_directory(req, repos, node, rev)
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/web_ui/browser.py", line 162, in _render_directory
    for entry in node.get_entries():
  File "/usr/lib/python2.4/site-packages/tracvc/hg/backend.py", line 418, in get_entries
    self.manifest, self.mflags)
  File "/usr/lib/python2.4/site-packages/tracvc/hg/backend.py", line 349, in __init__
    self._init_path(log, path)
  File "/usr/lib/python2.4/site-packages/tracvc/hg/backend.py", line 368, in _init_path
    log_rev = self.repos.repo.file(file).linkrev(file_n)
  File "/usr/lib/python2.4/site-packages/mercurial/revlog.py", line 494, in linkrev
    return self.index[rev][4]
TypeError: list indices must be integers