Comment 1 for bug 1649586

This doesn't really make sense because right before the POST to live migrate the server, there is a GET to show server details and the task_state is null:

http://logs.openstack.org/04/409904/2/check/gate-grenade-dsvm-neutron-multinode-live-migration-nv/78de48c/console.html#_2016-12-13_03_07_56_455490

Body: {"server": {"OS-EXT-STS:task_state": null, "addresses": {}, "links": [{"href": "http://10.14.206.189:8774/v2.1/servers/af219925-a0a1-4e1c-92e0-ff6f510d7cd1", "rel": "self"}, {"href": "http://10.14.206.189:8774/servers/af219925-a0a1-4e1c-92e0-ff6f510d7cd1", "rel": "bookmark"}], "image": {"id": "a475d1c8-5f9b-4552-9ecf-87533ec3e85e", "links": [{"href": "http://10.14.206.189:8774/images/a475d1c8-5f9b-4552-9ecf-87533ec3e85e", "rel": "bookmark"}]}, "OS-EXT-STS:vm_state": "active", "OS-EXT-SRV-ATTR:instance_name": "instance-00000014", "OS-SRV-USG:launched_at": "2016-12-13T03:01:14.000000", "flavor": {"id": "42", "links": [{"href": "http://10.14.206.189:8774/flavors/42", "rel": "bookmark"}]}, "id": "af219925-a0a1-4e1c-92e0-ff6f510d7cd1", "user_id": "9b95e78e3c244290b6ffd698de425a2e", "OS-DCF:diskConfig": "MANUAL", "accessIPv4": "", "accessIPv6": "", "progress": 0, "OS-EXT-STS:power_state": 1, "OS-EXT-AZ:availability_zone": "nova", "metadata": {}, "status": "ACTIVE", "updated": "2016-12-13T03:01:15Z", "hostId": "da92b52d875d7401b5f39e89d04281ea08bd3f87b14598ae7fd43d1c", "OS-EXT-SRV-ATTR:host": "ubuntu-xenial-2-node-osic-cloud1-s3700-6130183", "OS-SRV-USG:terminated_at": null, "key_name": null, "OS-EXT-SRV-ATTR:hypervisor_hostname": "ubuntu-xenial-2-node-osic-cloud1-s3700-6130183", "name": "tempest-LiveBlockMigrationTestJSON-server-424389653", "created": "2016-12-13T03:01:12Z", "tenant_id": "1d976b4e688848f7ba264443a2d662c8", "os-extended-volumes:volumes_attached": [], "config_drive": ""}}