Comment 3 for bug 1849409

Reviewed: https://review.opendev.org/690428
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=45c2752f2ce08b314012eff044b01aa7d626b43d
Submitter: Zuul
Branch: master

commit 45c2752f2ce08b314012eff044b01aa7d626b43d
Author: Matt Riedemann <email address hidden>
Date: Tue Oct 22 17:53:20 2019 -0400

    Add functional regression test for bug 1849409

    Change I1aa3ca6cc70cef65d24dec1e7db9491c9b73f7ab in Queens,
    which was backported through to Newton, introduced a regression
    when listing deleted servers with a marker because it assumes
    that if BuildRequestList.get_by_filters does not raise
    MarkerNotFound that the marker was found among the build requests
    and does not account for that get_by_filters method short-circuiting
    if filtering servers with deleted/cleaned/limit=0. The API code
    then nulls out the marker which means you'll continue to get the
    marker instance back in the results even though you shouldn't,
    and that can cause an infinite loop in some client-side tooling like
    nova's CLI:

      nova list --deleted --limit -1

    This adds a functional recreate test for the regression which will
    be updated when the bug is fixed.

    Change-Id: I324193129acb6ac739133c7e76920762a8987a84
    Related-Bug: #1849409