官方动态校验规则切换报错

[missy0u]

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

Version

1.3.8

Environment

Win7、Chrome 73.0.3683.103、 Vue 2.6.10

Reproduction link

Steps to reproduce

What is expected?

动态校验方式切换的时候不应该报错吧？

What is actually happening?

动态校验方式切换报错！

[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.