Jest bug reproduction

Jest fails to preserve module identity for symlinks when using the browser package.json field.

Steps to reproduce

1. pnpm install -r
2. cd simple-reproduction
3. pnpm test

Notice that using the browser: true option, the test fails because module identity is not preserved.

Explanation

Suppose we have the following dependency graph:

           ┌────────────────────┐
           │reproduction-example│
           └────────────────────┘
                      │
         ┌────────────┤
         │            │
         ▼            │
┌─────────────────┐   │
│has-browser-field│   │
└─────────────────┘   │
         │            │
         └────────────┤
                      │
                      ▼
            ┌──────────────────┐
            │needs-preserved-id│
            └──────────────────┘

Jest treats reproduction-example/needs-preserved-id and reproduction-example/has-browser-field/needs-preserved-id as distinct modules if has-browser-field specifies a browser field and the browser: true Jest config option is used.