Comment 2 for bug 1714909

Reviewed: https://review.openstack.org/500656
Committed: https://git.openstack.org/cgit/openstack/karbor-dashboard/commit/?id=1d7fd7c754c48f39534984d1792698f2dce17e10
Submitter: Jenkins
Branch: master

commit 1d7fd7c754c48f39534984d1792698f2dce17e10
Author: Pengju Jiao <email address hidden>
Date: Tue Sep 5 10:25:10 2017 +0800

    Fix checkpoints pagination error

    Currently, previous page in checkpoints pagination not
    work, it always throw an error in the web page. It is
    because that checkpoints in karbor do not need reverse
    the order (checkpoints are sorted by 'timestamp@id' in
    the backend, so we can not do the reverse only be the
    id or name)

    This patch will fix it.

    Change-Id: I45c3e7337bf2ee9d3f2fbf9ee7a438884b8b8ca9
    Closes-Bug: #1714909