- [ ] I have searched the [issues](https://github.com/vueComponent/ant-design-vue/issues) of this repository and believe that this is not a duplicate. ### Version 2.1.0 ### Environment x ### Reproduction link [https://2x.antdv.com/components/select-cn#components-select-demo-label-in-value](https://2x.antdv.com/components/select-cn#components-select-demo-label-in-value) ### Steps to reproduce  ### What is expected? x ### What is actually happening? x <!-- generated by issue-helper. DO NOT REMOVE -->