Inline object creation doesn't redirect to previous modal upon form validation error

[Kelsey Tripp]

1. Open modal with inline object creation button (i.e. Create User)
2. Click inline object creation button to bring up new modal/form to create the object (i.e. [+] to add a new primary project)
3. Submit the new object creation form with a required field left blank (i.e. leave the project "Name" field blank and click Finish)
4. The form validation error is shown (i.e. "This field is required.") Fill in the field correctly and re-submit the form.
5. You are redirected to the newly created object's table page (i.e. the Projects page) instead of being returned to the original modal that brought up the form to create the object. Instead, this should work the same way as it does had the form been submitted without validation errors.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/12613

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/12613
Committed: http://github.com/openstack/horizon/commit/8756b3b2ada6f4ff914c2d733a814361d4e62415
Submitter: Jenkins
Branch: master

commit 8756b3b2ada6f4ff914c2d733a814361d4e62415
Author: Gabriel Hurley <email address hidden>
Date: Fri Sep 7 15:41:00 2012 -0700

    Preserve add-to-field after form error.

    Fixes bug 1037302.

    Change-Id: I827f1b74efc6835dfac1fdcdc7c2a7c12af421eb