Fix sla #4371 - SOAP: when creating a new artifact default values are set

Change-Id: If80d1a4291e2e1a908e772bc7bef847baad1d92c

Add private meethod to make the job

Change-Id: I513abcd4cfea114e4ae2b7f21a0be9c206f30cbe

Change-Id: If80d1a4291e2e1a908e772bc7bef847baad1d92c
Merge commit 'refs/changes/46/646/2' of http://gerrit.tuleap.net/tuleap into HEAD

* http://gerrit.tuleap.net/tuleap:
  Fix sla #4371 - SOAP: when creating a new artifact default values are set

Change-Id: Idd101432c4ace1a29d46c6472cf3401afec518de
This is Tuleap 6.2.99.25

Change-Id: I1968f1883d8ef2c84841837975e18a7d0482470c