null append to primary project dropdown list when a project is created in the create_user_form

[Wu Hong Guang]

Testing step in latest horizon upstream:

1: login as admin
2: create a user then create a new project in this form
3: null append to project list

[Timur Sufiev (tsufiev-x)]

The bug was introduced by the change https://github.com/openstack/horizon/commit/3b24bca0749c13b828dad5d07733d7b70ca8d435#diff-58479fd50b8eddb273d41ad9c15dafa4L404

The Workflow class needs the attribute `self.object` to be set to the newly created entity in order to return the reference to it https://github.com/openstack/horizon/blob/2015.1.0b1/horizon/workflows/views.py#L208 to the javascript handler https://github.com/openstack/horizon/blob/2015.1.0b1/horizon/static/horizon/js/horizon.modals.js#L236

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/146858

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/146858
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=3d7b163f87a6f71308bd6016c3a4e620de4753c5
Submitter: Jenkins
Branch: master

commit 3d7b163f87a6f71308bd6016c3a4e620de4753c5
Author: Timur Sufiev <email address hidden>
Date: Tue Jan 13 16:25:07 2015 +0300

    Fix setting Primary Project for new user once the project was created

    When the project is being created via pressing '+' button at Create
    User form, it is important to store the reference to it inside the
    `workflow.object` attribute, otherwise [None, None] value will be
    returned to the client-side code which will cause appending "null"
    value to the list of available projects - instead of adding the newly
    created project name and selecting it as the current value.

    Change-Id: I10fcb1f2fb51e341b15901d4f014f0e4faca3adf
    Closes-Bug: #1410129