ElemeFE / ElemeFE/element

[Bug Report] 级联选择器在有默认值的情况下选择默认值项change事件不触发

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#20,155 4 comments 0 reactions 0 assignees View on GitHub
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Description

### Element UI version
2.13.2

### OS/Browsers version
MacOS10.13.6/chrome 85.0.4183.83

### Vue version
2.6.11

### Reproduction Link
https://codepen.io/rehack/pen/poyLvdJ

### Steps to reproduce
1.chrome中打开重现链接
2.点击页面编辑按钮
3.点击编辑按钮后会弹出级联选择器
4.可以看到级联选择器设置了默认值“管理部/系统管理部”
5.从级联选择器选择一个非默认值(“管理部/系统管理部”)的项
6.可以看到非默认值的项成功被选中
7.此时再次去选择“管理部/系统管理部”这一项,此时bug出现!
![未标题-1](https://user-images.githubusercontent.com/9047357/92629872-8891e100-f301-11ea-8dcb-b465116ebaea.png)

### What is Expected?
默认值项可以再次被选择

### What is actually happening?
默认值项无法再次被选择

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