vue3中reactive的对象清空所引发的问题解决方案(清空不了和清空之后再去赋值就赋值不了)

let filters = reactive({
  status:''
});

const clearFilters(filters) {
    for (const key in filters) {
      if (filters.hasOwnProperty(key)) {
        delete filters[key];
      }
    }
}

<el-form ref="formRef" :inline="true" :model="filters" class="card table-search">
  <div class="search-title">{{ route.name }}</div>
  <div class="search_content">
    <div class="searchCol">
        <el-form-item label="" prop="orgName">
          <el-autocomplete
            v-model="filters.orgName"
            :trigger-on-focus="false"
            value-key="orgName"
            :fetch-suggestions="querySearch"
            clearable
            class="inline-input w-50"
            placeholder="请输入机构"
            @select="handleSelect"
          />
        </el-form-item>
      <el-form-item label="" prop="status">
        <el-select
          v-model="filters.status"
          placeholder="请选择启用状态"
          style="width: 240px"
          clearable
        >
          <el-option  :value="0" label="启用"></el-option>
          <el-option :value="1" label="停用"></el-option>
        </el-select>
      </el-form-item>
    </div>
    <div class="search_btn">
      <el-form-item class="operation">
        <el-button type="primary" @click="search"> 查询</el-button>
        <el-button @click="reset"> 清空</el-button>
      </el-form-item>
    </div>
  </div>
</el-form>

let filters = reactive({});
const formRef = ref();
const allOrgs=ref([
{orgName:'机构1',orgCode:'1'},
{orgName:'机构2',orgCode:'2'},
{orgName:'机构3',orgCode:'3'}
])
const querySearch = (queryString: string, cb: any) => {
  const results = queryString ? allOrgs.value.filter(createFilter(queryString)) : allOrgs.value;
  cb(results);
};
const createFilter = (queryString: string) => {
  return (thisOrg) => {
    return thisOrg.orgName.indexOf(queryString) != -1;
  };
};
const handleSelect = (item) => {
  filters.orgCode = item.orgCode;
};
//访问接口
const getTableList = () => {
  let param= {param:{...filters} };//这里后端希望如果没有搜索条件就传个空对象param:{}这样的格式。
  regionPage(newParams);
};
const search = () => {
  if(filters.orgName==""){
    delete filters.orgName;
    delete filters.orgCode;
  }
  if(filters.status===""){
    delete filters.status;
  }
  getTableList();
};
const reset = () => {
  //Object.assign({},filters) 这里可能导致filters.orgCode没有清除掉
 // filters={} 这里会导致页面失去响应式。清除内容后再去回填选择不上的问题
  clearFilters(filters)  //使用这个才正确
  console.log("filters",filters)
  formRef.value.resetFields();
  getTableList();
};
 const clearFilters(filters) {
    for (const key in filters) {
      if (filters.hasOwnProperty(key)) {
        delete filters[key];
      }
    }
}