[Twisted-web] Session not destroyed on logout when using new cred

[Justin Johnson]

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The attached tac file demonstrates my problem.

1) Login with username of "user" and password of "password".
   A large red "None" should appear because there is no session data.
2) Reload the page.  Now session data should appear.
3) Logout and login again.
   The session data appears right away, but I would expect it to not be
   available yet.

Does anyone know what the proper way to have the session destroyed when I
logout is?  It seems like this should be done automatically for me.

Thanks.
-Justin

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