React-Downshift -如何防止被Esc键清除？

import React from 'react';
import { useCombobox } from 'downshift';

const items = ['Apple', 'Banana', 'Cherry', 'Durian'];

const App = () => {
  const {
    isOpen,
    selectedItem,
    getToggleButtonProps,
    getMenuProps,
    getItemProps,
    highlightedIndex,
    openMenu,
    closeMenu,
    selectItem,
  } = useCombobox({
    items,
    onStateChange: ({ type, inputValue }) => {
      if (type === 'keydown' && inputValue === '') {
        // 当按下Esc键且输入框为空时，阻止清除选择
        return;
      }
    },
  });

  return (
    <div>
      <button {...getToggleButtonProps()}>{selectedItem || 'Select an item'}</button>
      <ul {...getMenuProps()}>
        {isOpen &&
          items.map((item, index) => (
            <li
              key={item}
              {...getItemProps({
                item,
                index,
                style: {
                  backgroundColor: highlightedIndex === index ? 'lightgray' : 'white',
                },
              })}
            >
              {item}
            </li>
          ))}
      </ul>
    </div>
  );
};

export default App;