Keystone REST handles default role incorrectly

[Thai Tran]

The keystone REST currently assigns a role to the user even if the role is the default role (_member_). This causes keystone client v2 to return an error.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/181501

[Canh Truong (canh-v-truong)]

I get the same error with user role when I change the primary project of admin user. The keystone client return an error for user role. I read your solution and fix follow yours. But it doesn't work. Do you have any tests for your solution ?
The bug I mentioned is at: https://bugs.launchpad.net/horizon/+bug/1459065

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/181501
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=9347cb43cc23b3acb2d059b5278f3b5335cee334
Submitter: Jenkins
Branch: master

commit 9347cb43cc23b3acb2d059b5278f3b5335cee334
Author: Thai Tran <email address hidden>
Date: Fri May 8 11:57:59 2015 -0700

    Keystone REST handles default role incorrectly

    The keystone REST currently assigns a role to the user even if the role is the
    default role (_member_). This causes keystone client v2 to return an error.
    This patch fixes this issue.

    Change-Id: I6de6c66eb88abfd23a171c0f13aeff2f707991e2
    Closes-bug: #1453245
    Co-Authored-By: Richard Jones <email address hidden>