Comment 2 for bug 1802592

Reviewed: https://review.openstack.org/617035
Committed: https://git.openstack.org/cgit/openstack/python-tripleoclient/commit/?id=82ace31be5fcd5e28a8d253cda3b221d8dabf140
Submitter: Zuul
Branch: master

commit 82ace31be5fcd5e28a8d253cda3b221d8dabf140
Author: Alex Schultz <email address hidden>
Date: Fri Nov 9 14:18:08 2018 -0700

    Only return plans if available from the message

    There appears to be a race condition in the list_deployment_plans such
    that if another message is recieved before the plan results, we attempt
    to return the plans payload which may not exist. This change adds a
    check to ensure the payload contains plans before trying to return the
    values.

    Change-Id: I58da6f699fe8257e3ddb89cd3516889944c4ad92
    Closes-Bug: #1802592