Comment 21 for bug 1604479

I set up a test locally to see if I could recreate what you're seeing [0]. I am able to list users regardless of the default project id or the email attribute being present. Are you using a specific version of python-keystoneclient. I attempted this with master of both keystone and python-keystoneclient.

[0] http://cdn.pasteraw.com/d79a18f4pnydnqboni2svg5zdolsmos