Permissions not cleared before displayed

1. install nuxeo
2. start nuxeo
3. run the attached script to create 1000 groups, create a user named rraynes and assign them to him.
4. login to Nuxeo
5. create a Workspace
6. inside a Workspace create 2 files azerty and qwerty
7. give Read permission to rraynes user on azerty document
8. consult the qwerty document
9. observe the azerty permissions are momentarily displayed

Note: this can be very slow on some deployments and lead users to assume the wrong permissions are set on the document.