Does not work in submodule when installed in root

[notramo]

What package has an issue

@svelteuidev/core

A clear and concise description of what the bug is

The issue description can be read at oven-sh/bun#6170
I originally thought it's a Bun bug, but later discovered it affects Node.js too, however, with a different error message.

Steps To Reproduce

See the linked Bun issue for the steps.