Importing a named export returns undefined when there's default and named exports

[davidblnc]

🐛 bug report

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• I have searched the issue tracker for an issue that matches the one I want
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Description of the problem

(At least starting with a Vue template) If you try to import a named export from a component (where there's also the default export of the component per se), you always end up with undefined

How has this issue affected you? What are you trying to accomplish?

Cannot declare shared variables between components.

To Reproduce

In the provided sandbox, look at the console output. The variable "testExport" is imported in App.vue from components/HelloWorld.vue.

Link to sandbox: Link to sandbox (optional)

Your Environment

Software	Name/Version
Сodesandbox
Browser	Firefox 87.0
Operating System	Windows 10