Unable to delete extra spec on admin volume type panel

[qiaomin032]

Unable to delete extra spec on admin volume type panel

Steps to Reproduce:
================
1. Open Admin/Volumes/Volumes Type panel;
2. Click the "View Extra Specs" button in the row action of the table, and there will show a modal of 'Volume Type Extra Specs' info.
3. Click the 'Delete Extra Spec' button in the modal.

Actual results:
===========
There cast the error in the top right corner of the page,
and below is the log in the console:

Action (u'deleted extra spec', u'czxczx') Failed for Volume Type 13475ec2-69a1-421f-8eac-5f01e70d2689 has no extra specs with key c. (HTTP 404) (Request-ID: req-a6addb44-ba69-48c5-a4cf-c14172a6f479)

Expected results:
==============
Extra Specs should delete

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/400085

[OpenStack Infra (hudson-openstack)]

Change abandoned by Rob Cresswell (<email address hidden>) on branch: master
Review: https://review.openstack.org/400085
Reason: Abandoned due to inactivity. Please feel free to restore if you have time to work on it.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/447765

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/447765
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=2e30dca2bc06f12a3043229a9362b0396446a22f
Submitter: Jenkins
Branch: master

commit 2e30dca2bc06f12a3043229a9362b0396446a22f
Author: space <email address hidden>
Date: Mon Mar 20 22:23:35 2017 -0400

    Fix the bug in 'Delete Extra Spec'

    The cause is that ID of a single object is passed as the argument
    so we need to convert it into an array (iterable) so that delete the
    volume_type's extra spec return success.

    Change-Id: I7d2225e5497748faf20345fd2579c359fff9f3fb
    Closes-Bug: #1643417

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/horizon 12.0.0.0b1 development milestone.