message: fix empty tag array
diff: @@ -48,7 +48,7 @@ export class BaseTemplateModel extends BaseModel {
  constructor(json) {
  super(json);
  this.created = moment(json.created).toDate();
  - this.tags = this.tags.map(tag => new Tag(tag));
  + this.tags = this.tags ? this.tags.map(tag => new Tag(tag)) : [];
  }
  public get isTemplate(): boolean {
  