颤动：在垂直SliverList内具有水平ListView的临时Bug

Question

垂直向上滚动后，水平ListView会向右滚动。

仅在显示水平Listview时手指不再触摸触摸屏并且垂直SliverList继续自行运行时，才会发生错误。

以下是重现该错误的代码：

Widget build(BuildContext context) {
return CustomScrollView(
  slivers: <Widget>[
    SliverList(
      delegate: SliverChildBuilderDelegate(
        (context, index) {
          if (index == 0)
            return SizedBox(
              height: 50,
              child: ListView.builder(
                itemBuilder: (context, index) => Container(
                      width: 200,
                      color: Colors.black45,
                      margin: const EdgeInsets.symmetric(horizontal: 8),
                    ),
                scrollDirection: Axis.horizontal,
              ),
            );
          return Container(
            height: 200,
            margin: const EdgeInsets.symmetric(vertical: 8),
            color: Colors.black45,
          );
        },
      ),
    )
  ],
);
}