message: fix Enter key trigger check the real open state
diff: @@ -223,7 +223,7 @@ class Select extends React.Component {
  return;
  }
  - if (state.open) {
  + if (this.getRealOpenState(state)) {
  const menu = this.selectTriggerRef.getInnerMenu();
  if (menu && menu.onKeyDown(event, this.handleBackfill)) {
  event.preventDefault();
  @@ -731,8 +731,8 @@ class Select extends React.Component {
  return hasNewValue ? nextValue : undefined;
  };
  - getRealOpenState = () => {
  - let open = this.state.open;
  + getRealOpenState = (state) => {
  + let open = (state || this.state).open;
  const options = this._options || [];
  if (isMultipleOrTagsOrCombobox(this.props) || !this.props.showSearch) {
  if (open && !options.length) {
  