Comment 7 for bug 1822582

Reviewed: https://review.opendev.org/653947
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=14c76d31814b8e696349a1c00ba65ef2919b48af
Submitter: Zuul
Branch: master

commit 14c76d31814b8e696349a1c00ba65ef2919b48af
Author: Oleg Bondarev <email address hidden>
Date: Fri Apr 19 17:00:22 2019 +0400

    Move subnet postcommit out of transaction for bulk create

    For auto-address IPv6 subnets postcommit has update port action
    if the net already has ports. This results in
    "cannot be called within a transaction" error for bulk IPv6 subnet
    create.

    Closes-Bug: #1822582
    Change-Id: Ia32ec4c11c0793e7df07dcce19c122b3c7f865e1