G6.TreeGraph bug #4630

Describe the bug

bug预览地址：https://codesandbox.io/s/gb7gc3 该demo为官方自己提供的demo bug描述：

• 当第一次点击展示子节点的时候会闪现一下chilren节点，然后消息，第二次点击正常显示。
• 版本："@antv/g6": "latest"

Your Example Website or App

https://codesandbox.io/s/gb7gc3

Steps to Reproduce the Bug or Issue

https://codesandbox.io/s/gb7gc3

Expected behavior

https://codesandbox.io/s/gb7gc3

Screenshots or Videos

https://codesandbox.io/s/gb7gc3

Platform

• OS: [e.g. macOS, Windows, Linux]
• Browser: [e.g. Chrome, Safari, Firefox]
• Version: [e.g. 91.1] https://codesandbox.io/s/gb7gc3

Additional context

https://codesandbox.io/s/gb7gc3