Comment 4 for bug 1729806

Reviewed: https://review.openstack.org/518556
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=c34e37eef31add8224211b799a56d866c5013fbd
Submitter: Zuul
Branch: master

commit c34e37eef31add8224211b799a56d866c5013fbd
Author: Surya Seetharaman <email address hidden>
Date: Wed Nov 8 15:57:16 2017 +0100

    update_cell allows more than once cell to have the same db/transport url

    Unlike in nova-manage create_cell, in nova-manage update_cell the check
    for the same combination of transport-url and/or database_connection
    does not exist. Hence it allows a user to update a cell's transport-url
    and/or database_connection to another existing cell's transport/db urls.

    Change-Id: Ia5d5566c535d6da3d215392590a2d362e1226424
    Closes-Bug: #1729806