Container create failed on docker but still saved in magnum

[Lan Qi song]

When container create failed (such as we create a container has a same name with an already exist container):

$magnum container-create < cirros-container.json
ERROR: Docker API Error : 409 Client Error: Conflict ("Conflict, The name test-container is already assigned to 158af4981e18ef621d0df7a70e4b19128da4a3deb05d6c0a77915fccc02c2105. You have to delete (or rename) that container to be able to assign test-container to a container again.") (HTTP 500)

Actually, it was already created in magnum:
$ magnum container-list
+--------------------------------------+-----------------+
| uuid | name |
+--------------------------------------+-----------------+
| 47d187bd-4fd4-46f7-941e-1a493eddcd52 | test-container |
| 7e4700bd-02b7-48cb-b46e-33d88acf3a88 | test-container |
+--------------------------------------+-----------------+

And we can't figure out which one is the success one.

[Lan Qi song (lqslan)]

The fix patch: https://review.openstack.org/#/c/178523/

[OpenStack Infra (hudson-openstack)]

Change abandoned by Lan Qi Song (<email address hidden>) on branch: master
Review: https://review.openstack.org/178523