message: React to changing titles.
diff: @@ -126,12 +126,14 @@ export class Dropdown extends DropdownMixin {
  return;
  }
  + const title = nextProps.title || this.props.title;
  +
  const { autocompleteText } = this.state;
  let { items, autocompleteFilter } = nextProps;
  if (autocompleteFilter && !_.isEmpty(autocompleteText)) {
  items = _.pickBy(items, (item, key) => autocompleteFilter(autocompleteText, item, key));
  }
  - this.setState({items});
  + this.setState({items, title});
  }
  componentDidUpdate (prevProps, prevState) {
  