The empty slot of cascader does not work with filtering no result

[litt1e-p]

TuSimple/naive-ui version (版本)

2.33.5

Vue version (Vue 版本)

3.2.40

Browser and its version (浏览器及其版本)

106.0.5249.119 64bit

System and its version (系统及其版本)

window 10 64bit

Node version (Node 版本)

v16.13.0

Reappearance link (重现链接)

https://codesandbox.io/s/ur6z10?file=/src/Demo.vue:414-719

Reappearance steps (重现步骤)

1. define my empty slot

<n-cascader
      v-model:value="value"
      placeholder="没啥用的值"
      :expand-trigger="hoverTrigger ? 'hover' : 'click'"
      :options="options"
      :check-strategy="checkStrategyIsChild ? 'child' : 'all'"
      :show-path="showPath"
      :filterable="filterable"
      @update:value="handleUpdateValue">
      <template #empty>
        <div>no found!</div>
      </template>
</n-cascader>

2. filter with some keywords that no result represented
3. the bug will occur

Expected results (期望的结果)

work with my slot content

Actual results (实际的结果)

still showing the default empty slot

Remarks (补充说明)