export * as is flattened in SSR

[hgl]

Describe the bug

When loading SSR, given these two files:

entry-server.js

export * as maths from "./maths"

maths.js

export function square (x) {
	return x * x;
}
// other exports

vite.ssrLoadModule('/src/entry-server.js') returns a module that directly contains the square function, instead of a maths object.

Note that it's correctly handled by rollup.

Reproduction

https://github.com/hgl/vite-repo-export-as

System Info

Output of npx envinfo --system --npmPackages vite,@vitejs/plugin-vue --binaries --browsers:

  Binaries:
    Node: 14.17.0 - /usr/local/bin/node
    Yarn: 1.22.10 - /usr/local/bin/yarn
    npm: 6.14.13 - /usr/local/bin/npm
  npmPackages:
    vite: ^2.3.8 => 2.3.8 

Used package manager: yarn

---

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[github-actions]

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