The select component does not work in automatic word segmentation in multi-select mode

[liushi-code]

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

Version

1.7.3

Environment

系统版本win10 20H2,chrome版本91.0，Vue版本2.6.3

Reproduction link

Steps to reproduce

1.使用a-select组件，设置mode为multiple，token-separators为[',',';']
2.复制字符串'a1,b2,c3'到select框中

What is expected?

期待出现自动分词效果，select框中展示已分词后的选项a1 b2 c3

What is actually happening?

字符串粘贴到select框之后，不能正常显示内容

[John60676]

@liushi-code 你本地的代码能重现这个问题吗

[liushi-code]

@liushi-code 你本地的代码能重现这个问题吗
就是本地开发出现的问题

[John60676]

提供一个代码仓库重现一下，我这边本地没法重现