Comment 4 for bug 1738094

Reviewed: https://review.openstack.org/527799
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=94fd36f0582c5dbcf2b9886da7c7bf986d3ad5d1
Submitter: Zuul
Branch: master

commit 94fd36f0582c5dbcf2b9886da7c7bf986d3ad5d1
Author: Dan Smith <email address hidden>
Date: Wed Dec 13 14:26:00 2017 -0800

    Don't persist could-be-stale InstanceGroup fields in RequestSpec

    Not only might these be stale, but they can also be very large, especially
    if InstanceGroup.members has a lot of peer instance uuids. This can overrun
    a 64kb TEXT field and cause a failure.

    Related-Bug: #1738094

    Change-Id: Ie70c77db753711e1449e99534d3b83669871943f