a-radio-group 取消已选择项后，change事件再也无法触发，也无法再选中

[since2006]

• I have searched the issues of this repository and believe that this is not a duplicate.

Version

1.7.2

Environment

windows10, chrome 87, vue 2.5

Reproduction link

Steps to reproduce

change事件中，取消当前选中项，再点击时，上一步选中项change事件无法触发

What is expected?

还能触发change事件，还能继续选中

What is actually happening?

无法触发change事件，无法继续选中

[John60676]

Duplicate of #3047

[github-actions]

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