_onSortOrderChange(e) {
      this._recentlyFocused = this._sortOrder;
      this._currentSettings.sortOrder = this.initSortOrderItems.map(item => {
        item.selected = item.text === e.detail.item.innerText;
        return item;
      });
      // Invalidate
      this._currentSettings = JSON.parse(JSON.stringify(this._currentSettings));
    }
Stores <code>Sort Order</code> list as recently used control and its selected item in current state.