expandIcon props is not rendering without children key in Table Component

[vatsal-noovosoft]

I am trying to move to ant design v4 but it seems that Table component expandIcon behaviour is changed. It is not rendering without specifying children key attribute in the dataSource of Table Component to display Tree data. whereas in the stable version it works well without specifying children key in the table.

Here is the comparison:

1. Antd next v4 beta
   Antd Next (Not working without specifying children key in the dataSource)
   https://codesandbox.io/s/eloquent-murdock-r2x2x

2. Antd next v4 beta
   Antd Next (Working when specifying children key in the dataSource)
   https://codesandbox.io/s/dazzling-chaum-pdu7k

3. Stable version v3
   Antd latest** (Working
   https://codesandbox.io/s/icy-bird-kqivz

[ant-design-bot]

Hello @vatsal-noovosoft, your issue has been closed because it does not conform to our issue requirements. Please use the Issue Helper to create an issue, thank you!

你好 @vatsal-noovosoft，为了能够进行高效沟通，我们对 issue 有一定的格式要求，你的 issue 因为不符合要求而被自动关闭。你可以通过 issue 助手 来创建 issue 以方便我们定位错误。谢谢配合！