Antd V4版本中Form resetFields无效

componentDidUpdate() {
    if (this.formRef.current !== null) {
        this.formRef.current.resetFields();
    }
}

export default class UpdateForm extends Component {
    formRef = React.createRef();
    static propTypes = {
        categoryName: PropTypes.string.isRequired
    }
    componentDidUpdate() {
        if (this.formRef.current !== null) {
            this.formRef.current.resetFields();
        }
    }
    render() {
        const { categoryName } = this.props;
        console.log(categoryName);
        return (
            <Form ref={this.formRef}>
                <Item initialValue={categoryName} name="categoryName" >
                    <Input placeholder="请输入分类名称" />
                </Item>
            </Form>
        )
    }
}