message: fix: delete demo section-change.js
diff: @@ -65,7 +65,7 @@ class Cascader extends Component {
  component: this
  }
  }
  - componentWillReceiveProps (nextProps, b) {
  + componentWillReceiveProps (nextProps) {
  if (!shallowequal(nextProps.value, this.props.value) || !isEqual(nextProps.data, this.props.data)) {
  const cascaderLabel = this.getCascaderLabel(nextProps.value, nextProps.data)
  this.setState({
  