Comment 7 for bug 1780094

Reviewed: https://review.opendev.org/591867
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=03f65602dfeac04f202ce8eb7e68c6cdcf8cdc15
Submitter: Zuul
Branch: stable/queens

commit 03f65602dfeac04f202ce8eb7e68c6cdcf8cdc15
Author: Kailun Qin <email address hidden>
Date: Thu Apr 18 20:57:20 2019 +0800

    Fix attribute mismatch in router provider update

    The transition of a router from distributed to centralized may
    mistakenley get its 'ha' attribute updated at the same time. The
    side-effect is that the router may become HA enabled unexpectedly.

    This patch fixed the mismatched attribute in _update_router_provider
    method which addressed the issue cited above.

    Closes-Bug: #1780094
    Change-Id: Ib00de137692979229d1b7ba033ecff04e9cc9db0
    (cherry picked from commit 886e24155358afe7ad167ba1602d3939d68c3d5f)