Vue version

3.2.47

Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-e4ur7u?file=src/App.vue

Steps to reproduce

Stackblitz will automatically run "npm install & npm run build & npm run preview"

Open developer console to see the error.

What is expected?

Instantiating a new instance of an imported class inside of a property should work the same in dev and prod. The imported class should not be "unref()"ed.

Something like this would be expected, this is what is generated for a barrel import:

What is actually happening?

Vue adds unref around the class and behind the "new" keyword. This causes the built site to crash while it works in development.

System Info

System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 16.14.2 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 7.17.0 - /usr/local/bin/npm
  npmPackages:
    vue: ^3.2.47 => 3.2.47

Any additional comments?

This error does not occur in development (npm run dev).

I added a second Div to the Stackblitz which uses a barrel import, this does seem to be handled differently and does not cause an error.

looks like a duplicate of #6483