message: Fix not updating on empty label change
diff: @@ -142,7 +142,8 @@ export class DateTextField extends PureComponent {
  nextProps.value !== this.state.value ||
  nextProps.format !== this.props.format ||
  nextProps.maxDate !== this.props.maxDate ||
  - nextProps.minDate !== this.props.minDate
  + nextProps.minDate !== this.props.minDate ||
  + nextProps.emptyLabel !== this.props.emptyLabel
  ) {
  this.setState(this.updateState(nextProps));
  }
  