Comment 4 for bug 1671521

Reviewed: https://review.openstack.org/447059
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=8e12d76f86eccac41469f2f100b8fdab0bec0d6b
Submitter: Jenkins
Branch: master

commit 8e12d76f86eccac41469f2f100b8fdab0bec0d6b
Author: Igor Gajsin <email address hidden>
Date: Fri Mar 17 19:23:27 2017 +0300

    Reorder configs_query by time

    There is the possibility to change OpenStack config after deployment.
    Changes could be applied per role. And in the case of multiple roles
    on a node, many changes could pretend to be applied. I.e. if we have
    a config for the role 'compute', a config for the role 'cinder' and
    a node with role 'cinder+compute' we have to choose one of them.

    Previous decision was 'sort it in the lexicographical order', so it
    applies 'cinder' then --- 'compute'. It is contra intuitive. The best
    option is applying to a node the last related config, to new config
    overlaps old ones.

    Change-Id: I7db388ca3baeb351adc9fdb70c55b0be50fafe48
    Closes-bug: #1671521