HarmonyOS鸿蒙Next中数据变化了，但是视图没有更新

开发者您好，请确认下是不是通过JSON.parse反序列化的方式创建的CiticInfoBean对象？通过这种方式创建的对象使用@ObservedV2与@Trace装饰器是监听不到变化的，可以参考使用限制最后一条。可以通过如下代码复现问题，需要通过new操作符实例化对象，这样实例化的对象才具备被观测变化的能力

@ObservedV2
class CiticInfoBean{
  @Trace branchName:string = 'hello'
}

@ObservedV2
class CustomBean{
  @Trace mInfoBean: CiticInfoBean = new CiticInfoBean()
}
@Entry
@ComponentV2
struct Index {
  
  uiContext = this.getUIContext();
  context = this.uiContext?.getHostContext()

  @Local CiticInfoJson: CiticInfoBean = new CiticInfoBean()
  @Local CiticInfo: CiticInfoBean = new CiticInfoBean()

  aboutToAppear(): void {
    let json = '{"branchName":"hello"}'
    this.CiticInfoJson = JSON.parse(json) as CiticInfoBean
    if (this.context!=null) {
      this.context.eventHub.on('myEvent', (data:string)=>{
        //this.custom.mInfoBean.branchName = data
        this.CiticInfo.branchName = data
        this.CiticInfoJson.branchName = data
      });
    }
  }

  @Local count:number = 0
  build() {
    Column() {
      Text('反序列化创建对象'+this.CiticInfoJson.branchName)
        .fontWeight(FontWeight.Bold)
        .alignRules({
          center: { anchor: '__container__', align: VerticalAlign.Center },
          middle: { anchor: '__container__', align: HorizontalAlign.Center }
        })
      Text('通过new创建对象'+this.CiticInfo.branchName)
        .fontWeight(FontWeight.Bold)
        .alignRules({
          center: { anchor: '__container__', align: VerticalAlign.Center },
          middle: { anchor: '__container__', align: HorizontalAlign.Center }
        })
      Button('改变对象')
        .onClick(()=>{
          if (this.context!=null) {
            this.context.eventHub.emit('myEvent','hello'+this.count++);
          }
        })
    }
    .height('100%')
    .width('100%')
  }
}