fix(EmployeeSelector): 修复员工选择器中重复员工的问题

因为员工可能出现重名情况，添加去重逻辑确保selectedEmployees中每个员工的keyField是唯一的

klp-ui/src/components/EmployeeSelector/index.vue

@@ -279,10 +279,13 @@ export default {
     findSelectedEmployees(values) {
       if (this.employeeList.length > 0) {
         this.selectedEmployees = this.employeeList.filter(item => values.includes(item[this.keyField]))
+        // 因为员工可能出现重名，所以需要去重，保证selectedEmployees[i][this.keyField]是唯一的
+        this.selectedEmployees = this.selectedEmployees.filter((item, index, arr) => arr.findIndex(t => t[this.keyField] === item[this.keyField]) === index)
       } else {
         // 如果员工列表为空，先获取列表再查找
         this.getEmployeeList().then(() => {
           this.selectedEmployees = this.employeeList.filter(item => values.includes(item[this.keyField]))
+          this.selectedEmployees = this.selectedEmployees.filter((item, index, arr) => arr.findIndex(t => t[this.keyField] === item[this.keyField]) === index)
         })
       }
     }