Deselecting branch (or the entire tree) upon a backspace key down while being focused in a search input

[ryk0v]

Hey, I need to deselect the entire tree / branch by pressing the backspace button while being focused in a search input. The select is treeCheckable and follows the SHOW_PARENT checked strategy. Is there anything out of the box to achieve that ? Basically I need to override this behavior to completely deselect the non-leaf option (branch or tree) rather than removing the deepest leaf.

onSearchInputKeyDown = event => {
    const { searchValue, valueList } = this.state;

    const { keyCode } = event;

    if (KeyCode.BACKSPACE === keyCode && this.isMultiple() && !searchValue && valueList.length) {
      const lastValue = valueList[valueList.length - 1].value;
      this.onMultipleSelectorRemove(event, lastValue);
    }
  };