adding a fixed ip to instance with quantum replaces existing ip

[Vish Ishaya]

When adding a new fixed ip to an instance through nova while using a quantum backend, The existing ip is replaced:

for example:

$ nova list
+--------------------------------------+------+--------+------------------+
| ID | Name | Status | Networks |
+--------------------------------------+------+--------+------------------+
| 8c9d9cf1-6f93-46aa-8be9-1a1eabed8b68 | foo | ACTIVE | private=10.0.0.4 |
+--------------------------------------+------+--------+------------------+

$ nova add-fixed-ip foo fce9d57d-2a7a-4b06-ab1b-665170337cad

$ nova list
+--------------------------------------+------+--------+------------------+
| ID | Name | Status | Networks |
+--------------------------------------+------+--------+------------------+
| 8c9d9cf1-6f93-46aa-8be9-1a1eabed8b68 | foo | ACTIVE | private=10.0.0.3 |
+--------------------------------------+------+--------+------------------+

Expected:

both ips should be on the instance

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/24852

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/24852
Committed: http://github.com/openstack/nova/commit/b9a3e798dcb474bd733cb7a92219ec186831ae0c
Submitter: Jenkins
Branch: master

commit b9a3e798dcb474bd733cb7a92219ec186831ae0c
Author: Dan Wendlandt <email address hidden>
Date: Tue Mar 19 16:53:25 2013 -0700

    fix add-fixed-ip with quantum

    bug 1157439

    code was ignoring existing IPs on a port when adding a new IP.

    Change-Id: I11f3c81eafc6c7d44772c3c8aea3b14f4b6bc815