request #7419 - Error 500 on POST /artifacts or PUT /artifacts/123 when status field not empty

Change-Id: Ib6eb3662becbfd88ece78140a0d486f53817b8f3
Merge commit 'refs/changes/32/3032/2' of ssh://gerrit.tuleap.net:29418/tuleap into tuleap-stable-master

* ssh://gerrit.tuleap.net:29418/tuleap:
  request #7419 - Error 500 on POST /artifacts or PUT /artifacts/123 when status field not empty

Change-Id: I3e66cf7c12b06ea42c9d82c79f9f8c0dd83e029f
Tuleap 7.5.99.8

Change-Id: Ibf1bb724bb85a99476fe83eadff3e3cd38e8eccf