fix(pro:search): onItemConfirm value is empty when item is removed

[sallerli1]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines
• Tests for the changes have been added/updated or not needed
• Docs and demo have been added/updated or not needed

What is the current behavior?

高级搜索，由于搜索项非法而在确认时被删除，onItemConfirm的参数为空

What is the new behavior?

修复以上问题

Other information

[idux-bot]

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[codecov]

Codecov Report

Merging #1661 (aa41f6b) into main (54f2c7f) will not change coverage.
Report is 1 commits behind head on main.
The diff coverage is n/a.

❗ Current head aa41f6b differs from pull request most recent head 67e8e46. Consider uploading reports for the commit 67e8e46 to get more accurate results

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  Misses       2390     2390