Comment 4 for bug 1764330

Reviewed: https://review.openstack.org/562963
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=d604e831e8a5f3fc8fd489fade5dd821cec84de9
Submitter: Zuul
Branch: stable/queens

commit d604e831e8a5f3fc8fd489fade5dd821cec84de9
Author: Sławek Kapłoński <email address hidden>
Date: Mon Apr 16 13:17:17 2018 +0200

    [RBAC] Fix setting network as not shared

    In case when network was shared with specified project
    by RBAC rule and it was also set as "shared" there was
    a bug which forbid to set such network as not shared even
    if only projects which still used network was owner and
    project with specified RBAC rule.

    This patch fixes it by adding additional check in
    NeutronDbPluginV2._validate_shared_update() in such case.

    Change-Id: I6ab05a8f0ece454f5bef8ba978af05f5fa1354d8
    Closes-Bug: #1764330
    (cherry picked from commit 7aa941cc09aef8efe54f5bac111248d296e9c8ef)