[Bug Report] el-tree icon-class
- Dominant language
- Vue
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- 54k
- Forks
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Description
### Element UI version
2.13.0
### OS/Browsers version
win10 chrome 80.0.3987.163
### Vue version
2.6.11
### Reproduction Link
https://codepen.io/qingyun/pen/abvoLpg?editable=true
### Steps to reproduce
点击 tree 节点展开
### What is Expected?
el-tree 节点收缩状态 icon 为 el-icon-plus 展开状态节点为 el-icon-minus 。
查看issues #18306 关联提交 #49da8f5be2d3c5300eaf687ae27bfc27151bfbf4 . 发现tree 组件接收了 icon-class 和 expand-icon-class 两个属性，但实际使用时 最新版2.13.0 的tree 中通过props接收了 icon-class 属性，没有接 expand-icon-class 属性
### What is actually happening?
tree props 没有接收 expand-icon-class
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