Select active item bug

[bq-hentai]

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

Version

1.1.0

Environment

Win7/vue 2.5

Reproduction link

Steps to reproduce

Click first/second/third/fourth item, check if is active.

What is expected?

all situations go well.

What is actually happening?

first/second/third is not right.

[tangjinzhou]

not use '' and null

[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.