webpack - 动态导入 Next.js 但仍然可以看到 bundle 中的模块

Question

我将组件设置为可动态调用：

索引.tsx

import dynamic from "next/dynamic";
import { PhoneNumberInputProps } from "./components/PhoneNumberInput";

const PhoneNumberInput = dynamic<PhoneNumberInputProps>(
  () => import("./components/PhoneNumberInput") as any
);

组件/PhoneNumberInput.tsx

...
import PhoneInput from "react-phone-number-input";
...

export type PhoneNumberInputProps = {...};

export const PhoneNumberInput = ({...}: PhoneNumberInputProps) => {
...
}

所以，react-phone-number-input不应该是初始捆绑包的一部分，对吧？但是当我分析它时它仍然存在。为什么？