Comment 2 for bug 1938261

Reviewed: https://review.opendev.org/c/openstack/neutron/+/802665
Committed: https://opendev.org/openstack/neutron/commit/7988ab5df0eb0799811d50eb90f0b292d008f700
Submitter: "Zuul (22348)"
Branch: master

commit 7988ab5df0eb0799811d50eb90f0b292d008f700
Author: zhouhenglc <email address hidden>
Date: Wed Jul 28 15:25:39 2021 +0800

    "default_availability_zones" need to be considered when validate az

    If not set availability_zone_hits when create router, should use
    configuration parameter default_availability_zones.
    At present, only the creation parameters are validate, and the default
    availability zones not validate.
    Creating a network is the same as creating a route.

    Closes-bug: #1938261

    Change-Id: I1c7f50b69a31d725b762e3061f09a0bd5b077a58