message: fix: allow blank publication DOI
diff: @@ -45,7 +45,7 @@ export default class PublicationDoiManagerComponent extends Component.extend({
  return;
  }
  - const doi = extractDoi(this.validationNode.articleDoi as string) || '';
  + const doi = extractDoi(this.validationNode.articleDoi as string) || null;
  this.node.set('articleDoi', doi);
  try {
  