REVOKE Access while login using authentication token

So i got this error when i try to login with authentication token. The error showing up like this :

``` python
Traceback (most recent call last):
File "", line 1, in
File "line/client.py", line 321, in __init__
self.revision = self._getLastOpRevision()
File "line/client.py", line 609, in _getLastOpRevision
return self._client.getLastOpRevision()
File "/Library/Python/2.7/site-packages/curve/CurveThrift.py", line 512, in getLastOpRevision
return self.recv_getLastOpRevision()
File "/Library/Python/2.7/site-packages/curve/CurveThrift.py", line 534, in recv_getLastOpRevision
raise result.e
curve.ttypes.TalkException: TalkException(parameterMap=None, reason='REVOKE', code=8)
```

Do you know how to handle this error message? Thanks in advance.

Start with line/client.py at __init__ and _getLastOpRevision(), then follow the traceback into getLastOpRevision and the TalkException with reason REVOKE. Clarify the expected behavior for authentication-token login and how this error should be handled; the issue is done when that behavior is documented or implemented and verified against the failing path.

Written by the indexing model from the issue text.