Comment 9 for bug 1538209

Reviewed: https://review.openstack.org/273648
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=dcd4757e247816d3afc779be1c8ba076b39bc815
Submitter: Jenkins
Branch: master

commit dcd4757e247816d3afc779be1c8ba076b39bc815
Author: Ilya Kutukov <email address hidden>
Date: Thu Jan 28 19:49:06 2016 +0300

    Plugin links handlers now returning 409 on existing url

    Previous behaviour allowed to create multiple links with the same url
    what was occurring during plugin tasks re-run.

    Now 409 error is returned when plugin- or cluster-level link creating
    or updating with the non-unique URL value.
    Plugin developers should handle such exception by themselves
    in plugin tasks.

    DocImpact
    Closes-Bug: #1538209

    Change-Id: I1de1e9f3957cbe11e91cd8cd4806ac1cd714d630