ESM output of vue class components not tree-shakeable in webpack

[Robin-Hoodie]

Version

5.1.9

Reproduction link

https://github.com/Robin-Hoodie/rollup-plugin-vue-treeshake-bug

Steps to reproduce

Follow steps described in README of https://github.com/Robin-Hoodie/rollup-plugin-vue-treeshake-bug

What is expected?

rollup-plugin-vue produces tree-shakeable output when outputting an ESM bundle

What is actually happening?

All components are included in consumer project, regardless of whether or not it actually uses them

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This issue is highly related to #344 .

I used the reproduction repo provided by @mgdodge to reproduce that this is still an issue for components that use class syntax

[youlinaa]

same problem

[Robin-Hoodie]

Any updates on this, or any way we can help?