The problem that Option cannot use Number type in Select multi-select mode

[Hccake]

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

Version

1.7.7

Environment

Windows, Chrome, Vue 2.6.12

Reproduction link

Steps to reproduce

使用 number 作为 option 的值

What is expected?

多选模式下支持 number 作为 option 的值

What is actually happening?

报错

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想了解下为什么这么设计，使用 Number 作为 Option 的值，应该是一个比较常见的需求

[tangjinzhou]

基础组件逻辑来源于 react-component ant-design/ant-design#2857
react版本由于依赖 key，而且key只能为 string，所以限制了 string 类型，可以看看这个 pr react-component/select#229

虽然 vue 没有 string 限制，但有大量逻辑判断是基于string类型的，导致简单的放开类型权限会有较多问题

不过我们会在 2.2.7 版本中去掉该限制

[Hccake]

感谢回答，那这边就暂时只能先对数据做下特殊处理了，期待后续版本更新

[github-actions]

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