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Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 387, in dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 238, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/web_ui/log.py", line 112, in process_request
    for old_path, old_rev, old_chg in history(limit+1):
ValueError: need more than 0 values to unpack

