When token is requested using old/previous token it always fails with Error 401 and backtrace in keystone.log.

Discovered with openstack-keystone-2013.1.1-1.el6ost and reproduced also with openstack-keystone-2013.1-1.el6 from RDO.

First obtain token:
> $ keystone token-get
> +-----------+----------------------------------+
> |  Property |              Value               |
> +-----------+----------------------------------+
> |  expires  |       2013-05-24T11:36:05Z       |
> |     id    | 774bcddadc4d4c3fbdce42eadc35765d |
> | tenant_id | f07470d9361f477d924c9e0bf0fbfa9e |
> |  user_id  | 033fc7bd70084736b68e6ba919b8152a |
> +-----------+----------------------------------+


Then request new token using first token for authentication:
> localhost:5000 POST /v3/auth/tokens
> '{"auth": {
>    "identity":{
>      "methods":["token"],
>      "token":{"id":"774bcddadc4d4c3fbdce42eadc35765d"}}}}'

This fails with response:
> reply: 'HTTP/1.1 401 Not Authorized\r\n'
> header: Vary: X-Auth-Token
> header: Content-Type: application/json
> header: Content-Length: 116
> header: Date: Thu, 23 May 2013 11:36:17 GMT
> Reply body:
> {u'error': {u'code': 401,
>            u'message': u'The request you have made requires authentication.',
>            u'title': u'Not Authorized'}}

Keystone.log contains:
> 2013-05-23 13:36:17    ERROR [keystone.auth.controllers] 'token_data'
> Traceback (most recent call last):
>   File "/usr/lib/python2.6/site-packages/keystone/auth/controllers.py", line 287, in authenticate_for_token
>     self.authenticate(context, auth_info, auth_context)
>   File "/usr/lib/python2.6/site-packages/keystone/auth/controllers.py", line > 353, in authenticate
>     auth_context)
>   File "/usr/lib/python2.6/site-packages/keystone/auth/plugins/token.py", line 42, in authenticate
>     'user_id', token_ref['token_data']['token']['user']['id'])
> KeyError: 'token_data'
> 2013-05-23 13:36:17  WARNING [keystone.common.wsgi] Authorization failed. The request you have made requires authentication. from 127.0.0.1

Instead new proper token should be returned based on https://github.com/openstack/identity-api/blob/master/openstack-identity-api/src/markdown/identity-api-v3.md#the-token-authentication-method .

Example with older API V2 which works:
> localhost:5000 POST /v2.0/tokens
> {"auth":{
>   "token":{"id":"774bcddadc4d4c3fbdce42eadc35765d"},
>   "tenantName":"projB"}}