calling withValue(null) on a Select should clear it

[howudodat]

Describe the bug
calling withValue(null) on a Select should clear it

Expected behavior
I should be able to call setValue() or withValue() and pass in no selection which clears any selection

Proposed change:

  /**
   * Sets the value for the select. Optionally, it can notify listeners based on the provided silent
   * flag.
   *
   * @param value The new value to set.
   * @param silent If true, change listeners will not be notified.
   * @return an instance of the concrete class.
   */
  @Override
  public C withValue(V value, boolean silent) {
    if (value == null) 
      return clear(silent);
      
    V oldValue = getValue();
    if (!Objects.equals(value, oldValue)) {
      doSetValue(value);
      if (!silent) {
        triggerChangeListeners(oldValue, getValue());
      }
    }
    autoValidate();
    return (C) this;
  }