Comment 8 for bug 1793747

Reviewed: https://review.openstack.org/605266
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=329780eb9282b05959e9c6159869ef1b4538030d
Submitter: Zuul
Branch: stable/queens

commit 329780eb9282b05959e9c6159869ef1b4538030d
Author: Matt Riedemann <email address hidden>
Date: Tue Sep 25 19:10:48 2018 -0400

    Revert "Make host_aggregate_map dictionary case-insensitive"

    This reverts commit 2caf8f65e414732fb1ef1ac32a5884a48af6655d.

    The original change caused our host state processing to be inconsistent
    with our own hypervisors API. Automation tooling that used our API
    to add hosts to aggregates would fail silently. We are reverting
    this and will propose a check on the aggregate host add action
    which will confirm the case-sensitive mapping of the host being
    added, which is what we should have done in the first place.

    NOTE(mriedem): Since this is a revert of a backport to queens,
    we don't cherry pick the revert from rocky, but this is using
    the same change ID as the revert in rocky.

    Change-Id: Ibd44ba9de5680958f55f0ae6325cfc33dabadc4c
    Closes-Bug: #1793747