Vite 7 regression regarding `package.json#exports`

[brillout]

Describe the bug

It seems that Vite 7 doesn't properly resolve package.json#exports.

Reproduction

https://github.com/brillout/vite-7-regression-exports

Steps to reproduce

No response

System Info

System:
    OS: Linux 6.8 Ubuntu 24.04.2 LTS 24.04.2 LTS (Noble Numbat)
    CPU: (8) x64 Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz
    Memory: 2.23 GB / 7.52 GB
    Container: Yes
    Shell: 5.2.21 - /bin/bash
  Binaries:
    Node: 22.14.0 - ~/.nvm/versions/node/v22.14.0/bin/node
    Yarn: 1.22.22 - ~/.nix-profile/bin/yarn
    npm: 10.9.2 - ~/.nvm/versions/node/v22.14.0/bin/npm
    pnpm: 9.15.9 - ~/.local/share/pnpm/pnpm
    bun: 1.1.24 - ~/.bun/bin/bun
    Watchman: 2024.03.11.00 - /home/rom/.nix-profile/bin/watchman
  Browsers:
    Chrome: 137.0.7151.68
  npmPackages:
    vite: ^7.0.0-beta.2 => 7.0.0-beta.2

Used Package Manager

pnpm

Logs

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to vuejs/core instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[sapphi-red]

It seems to be a bug in vite-plugin-solid.
solidjs/vite-plugin-solid#218