最新版本，自定义覆盖物全都显示在左侧。

[ghost]

Do you want to request a feature or report a bug?

What is the current behavior?

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem. Your bug will get fixed much faster if we can run. Paste the link to your CodeSandbox (https://codesandbox.io/s/jnnxrwq5y3) example below:

What is the expected behavior?

官方文档的例子，自定义覆盖物，都显示在了左侧，设置point也不管用，好像失效了。
版本1.0.3
现在自定义覆盖物感觉用不了啊