message: Prevent arrow click default behavior
  Fix
diff: @@ -319,6 +319,7 @@ export default class Select extends React.Component {
  onArrowClick = e => {
  e.stopPropagation();
  + e.preventDefault();
  if (!this.props.disabled) {
  this.setOpenState(!this.state.open, !this.state.open);
  }
  