Image组件设置alt预览图和ImageFit.Fill后，网络图片加载出来后尺寸还是预览图的尺寸？

@Entry  
@Component  
struct Index {  
  @State imgFit: ImageFit = ImageFit.Auto;  
  build() {  
    Row() {  
      Column({ space: 10 }) {  
        Text("========ScaleDown========")  
        Image("http://nsp-contentcenter-h5-drcn.obs.cn-north-2.myhuaweicloud.cn/hwread_audiobook_1_1/96/v3/jabvW5fiTou8Fn1-_dxKQA/XX3DP1-pSzm8hwUYoex1QQ.webp")  
          .objectFit(ImageFit.ScaleDown)  
          .backgroundColor(0xCCCCCC)  
          .width(100)  
          .height(100)  
        Text("========Fill========")  
        Image("http://nsp-contentcenter-h5-drcn.obs.cn-north-2.myhuaweicloud.cn/hwread_audiobook_1_1/96/v3/jabvW5fiTou8Fn1-_dxKQA/XX3DP1-pSzm8hwUYoex1QQ.webp")  
          .objectFit(ImageFit.Fill)  
          .backgroundColor(0xCCCCCC)  
          .width(100)  
          .height(100)  
        Text("========Auto========")  
        Image("http://nsp-contentcenter-h5-drcn.obs.cn-north-2.myhuaweicloud.cn/hwread_audiobook_1_1/96/v3/jabvW5fiTou8Fn1-_dxKQA/XX3DP1-pSzm8hwUYoex1QQ.webp")  
          .objectFit(ImageFit.Auto)  
          .backgroundColor(0xCCCCCC)  
          .width(100)  
          .height(100)  
        Text("========测试代码=======")  
        Image("http://nsp-contentcenter-h5-drcn.obs.cn-north-2.myhuaweicloud.cn/hwread_audiobook_1_1/96/v3/jabvW5fiTou8Fn1-_dxKQA/XX3DP1-pSzm8hwUYoex1QQ.webp")// .objectFit(this.imgFit)  
          .objectFit(this.imgFit)  
          .backgroundColor(0xCCCCCC)  
          .alt($rawfile('loading.gif'))  
          .onComplete((value) => {  
            console.info("加载完成！" + JSON.stringify(value))  
            this.imgFit = ImageFit.Fill;  
          })  
          .width(100)  
          .height(100)  
      }  
      .height('100%')  
    }  
    .width('100%')  
  }  
}