调整人员月度表月份可以清空的问题

fhKeeper/formulahousekeeper/timesheet/src/views/corpreport/list.vue

@@ -86,7 +86,7 @@
           </el-option>
         </el-select>
         <!-- 月份选择 -->
-        <el-date-picker v-if="ins == 14" value-format="yyyy-MM" v-model="monthPersonnel" type="month" :placeholder="$t('Selectmonth')" @change="selcts()" size="small"></el-date-picker>
+        <el-date-picker v-if="ins == 14" value-format="yyyy-MM" v-model="monthPersonnel" type="month" :placeholder="$t('Selectmonth')" :clearable="false" @change="selcts()" size="small"></el-date-picker>
           
           <!-- 部门筛选 -->
           <el-cascader v-if="((ins == 9 && permissions.reportAllTimely) || (ins == 8 && permissions.reportAllTimeDivide) || (ins == 6 && permissions.reportAllOvertime) || (ins == 11 && permissions.reportPersonnel) || (ins == 14)) && user.userNameNeedTranslate != 1" v-model="departmentIdArray" :options="departmentList" :placeholder="$t('qing-xuan-ze-bu-men')"