Self-service

• I'd be willing to implement a fix

Describe the bug

#3284 (comment) (cc @nicolo-ribaudo)

I haven't investigated it yet.

To reproduce

Copied from that comment (I can repro it too):

I think that this is a breaking change. To reproduce:

• Clone https://github.com/babel/babel
• Verify that yarn constraints passes
• Update the plugin to 3.1.0-rc.10: yarn plugin import https://github.com/yarnpkg/berry/raw/@yarnpkg/cli/3.1.0-rc.10/packages/plugin-constraints/bin/%40yarnpkg/plugin-constraints.js
• yarn constraints reports a ton of failures

Environment

System:
    OS: Linux 5.14 Arch Linux
    CPU: (32) x64 AMD Ryzen 9 5950X 16-Core Processor
  Binaries:
    Node: 16.8.0 - /tmp/xfs-fe880b95/node
    Yarn: 3.0.2 - /tmp/xfs-fe880b95/yarn
    npm: 7.24.2 - ~/.nvm/versions/node/v16.8.0/bin/npm

Additional context

No response