Comment 22 for bug 1443913

It seems there is no need for a patch:

https://review.fuel-infra.org/gitweb?p=openstack/keystonemiddleware.git;a=blob;f=keystonemiddleware/auth_token.py;h=ba2f1d2ab559f65828dcbb971aaed98f9439917b;hb=refs/heads/openstack-ci/fuel-6.1/2014.2#l299

just set 'token_cache_time' configuration option to -1 and token caching will be disabled.
(@mfedosin, haven't we found this option last time we investigated this bug?)