Comment 4 for bug 1832759

Reviewed: https://review.opendev.org/665503
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=459b873c299c2dbf028f6d59f44ad33237c222c9
Submitter: Zuul
Branch: stable/stein

commit 459b873c299c2dbf028f6d59f44ad33237c222c9
Author: Harald Jensås <email address hidden>
Date: Wed Jun 12 19:49:20 2019 +0200

    Fix network rename + service_net_map_replace

    If name_lower of a network is changed, and service_net_map_replace
    is used. The subnet defined for the network in roles_data would
    have to be updated to match the new name_lower. This was not the
    case prior to stein, because roles_data did'nt include the subnet.

    A downstream regression test is failing because of this. The
    workaround is to update roles_data with a value for the subnet
    that match name_lower.

    This patch should fix the need to update roles_data in the case
    that the net_map_replace matches the subnet in roles_data and no
    additional subnet with this defined for this network in
    network_data.

    Closes-Bug: #1832759
    Change-Id: I10f99fad0f0016bf81edd53e1c5579f9d5c0ef88
    (cherry picked from commit 564d89b2f8609c79a2c21224c72a15b45397fbb7)