Comment 2 for bug 2003324

Reviewed: https://review.opendev.org/c/openstack/puppet-neutron/+/871077
Committed: https://opendev.org/openstack/puppet-neutron/commit/05b043698f1fc7511e3087bea6a4dada515e54a9
Submitter: "Zuul (22348)"
Branch: master

commit 05b043698f1fc7511e3087bea6a4dada515e54a9
Author: Takashi Kajinami <email address hidden>
Date: Thu Jan 19 19:22:58 2023 +0900

    Fix wrong bridge name if bridge_mappings is commma-separated string

    This change ensures the value is properly translated to a list even
    if it's a flat string so that the bridge name is properly picked up.

    This also fixes a few wrong assertions done in unit tests.

    Closes-Bug: #2003324
    Change-Id: I3a784588435619418cfd51a1ceffd9fd0ecd5e63