docs: @Override
    public final void setItsId(final IdI18nSpecificsOfItemGroup pItsId) {
      this.itsId = pItsId;
      if (this.itsId == null) {
        this.lang = null;
        this.hasName = null;
      } else {
        this.lang = this.itsId.getLang();
        this.hasName = this.itsId.getHasName();
      }
    }