[Bug]: Imports failing after upgrading from v1.2.0-beta.0 to v1.2.0+

[PointSingularity]

System Info

System:
OS: macOS 15.1.1
CPU: (12) arm64 Apple M2 Pro
Memory: 342.13 MB / 32.00 GB
Shell: 5.9 - /bin/zsh
Binaries:
Node: 22.13.0 - ~/.proto/shims/node
Yarn: 4.1.1 - ~/.proto/shims/yarn
Browsers:
Chrome: 132.0.6834.111
Edge: 132.0.2957.127
Safari: 18.1.1

Details

After updating to version 1.2.0, it seems Rspack can not find some packages in node_modules.

I linked a reproduction, and it is a bit janky with the copy of folders, but wanted to reproduce as close as possible to the real prod situation I have.

Reproduce link

https://github.com/PointSingularity/rspack-repro

Reproduce Steps

• Run yarn
• Copy @mycompany folder to node_modules
• Run yarn build

You should get no errors.

Then update rspack to a newer version:

• Run yarn up @rspack/cli @rspack/core
• Optional: Copy @mycompany folder to node_modules (only if it was removed with the new install)
• Run yarn build

There are errors.

If you use the commented import in packages/app/src/index.js instead of the top one, then it works partially, but it still breaks.

[damiangolojuch]

Same, last working version is 1.1.8