Comment 5 for bug 1764507

Reviewed: https://review.openstack.org/563937
Committed: https://git.openstack.org/cgit/openstack/instack-undercloud/commit/?id=c64a1c823e021b050c7eccaee1c42f4040b6b4e8
Submitter: Zuul
Branch: master

commit c64a1c823e021b050c7eccaee1c42f4040b6b4e8
Author: Dan Prince <email address hidden>
Date: Tue Apr 24 08:57:34 2018 -0400

    Fix net_config_override validations

    There is an issue with the _validate_no_ip_change function
    where it doesn't work correctly with a custom net_config_override
    file.

    This patch resolves validation issue so that custom os-net-config
    templates are taken into account. Additionally it makes it so
    that the net_config_override can be empty, thus providing the
    user a means of disabling os-net-config if they choose to do so.

    Change-Id: Iada099a6bddc7927d26b19776e705b1ac231b2e5
    Depends-On: I69eb812af2d653cb3eb29694ae29b57ebb2de53d
    Closes-bug: #1764507