A-cascader and a-input-group are used in combination, input content and then select, the rule constraint is abnormal, and the prompt "Please select" is displayed. Actually, it has been selected.

[softshield]

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

Version

1.7.2

Environment

Vue2.6 Chrome

Reproduction link

Steps to reproduce

a-cascader 和 a-input-group组合使用。
输入内容然后选择，rule约束不正常，提示“请选择”，其实已经选择了。

如果不使用 a-input-group则没有这个bug。

What is expected?

输入内容然后选择，不需要再提示“请选择”

What is actually happening?

输入内容然后选择，还是提示“请选择”

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[github-actions]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.