el-cascader在数据回显后,取消再勾选初始值后,不触发change事件。项目element版本是2.13.2,cascader代码如下
```javascript
<el-cascader
ref="elCascader"
v-model="formData.departmentNo"
:options="$store.state.user.departmentList"
:props="{
label: 'name',
value: 'childId',
multiple: true,
checkStrictly: true,
emitPath: false
}"
:show-all-levels="false"
clearable
filterable
placeholder="请选择单位名称"
style="width: 100%"
></el-cascader>
```