/**
  * Should we move this method outside of changeset creation
  * so that we can remove the dependency on artifact factory
  * and enforce SRP ?
  */
 protected function saveArtifactAfterNewChangeset(Tracker_Artifact $artifact, array $fields_data, PFUser $submitter, Tracker_Artifact_Changeset $new_changeset, Tracker_Artifact_Changeset $previous_changeset = null)
 {
     if ($this->artifact_factory->save($artifact)) {
         $used_fields = $this->formelement_factory->getUsedFields($artifact->getTracker());
         foreach ($used_fields as $field) {
             $field->postSaveNewChangeset($artifact, $submitter, $new_changeset, $previous_changeset);
         }
         $artifact->getWorkflow()->after($fields_data, $new_changeset, $previous_changeset);
         return true;
     }
     return false;
 }