Syncdaemon doesn't handle NoAccessToken exception

After user requested to connect (and there was no token), if the auth was cancelled or denied, or if the user entered wrong username/password, the syncdaemon raises NoAccessToken and never listens to new signals from SSO.

What you get on syncdaemon-exception.log is:

2010-11-24 16:56:38,241 - twisted - ERROR - Unhandled error in Deferred:
2010-11-24 16:56:38,242 - twisted - ERROR - Unhandled Error
Traceback (most recent call last):
Failure: ubuntuone.syncdaemon.dbus_interface.NoAccessToken: AuthorizationDenied: (dbus.String(u'Ubuntu One'),) {'member': 'AuthorizationDenied'}

This can be reproduced removing the U1 token from the keyring and running u1sdtool -q && u1sdtool -c and the clicking on cancel in the SSO GUI.