[Bug]: resetModules breaks instanceof

[kb-ig]

Version

29.7.0

Steps to reproduce

Clone repo:

git clone https://github.com/kb-ig/jest-instanceof-resetmodules

Install package:

npm install

Run test:

npm run test

Expected behavior

I would have thought the instanceof operator should remain unaffected following a call to jest.resetModules().

Actual behavior

The following test starts failing after a call to jest.resetModules().

// someModule.js
function isSomeClass(thing) {
    return thing instanceof SomeClass;
}

// someModule.test.js
const SomeClass = require('./SomeClass');

test('resetModules, instanceof', () => {
    const before = require('./someModule');
    const thing = new SomeClass();
    expect(before.isSomeClass(thing)).toBe(true); // pass

    jest.resetModules();

    const after = require('./someModule');
    expect(after.isSomeClass(thing)).toBe(true); // fail
})

The instanceof operator cannot correctly determine that an object is an instance of a certain class after calling jest.resetModules()

Additional context

No response

Environment

System:
    OS: Linux 6.5 Zorin OS 17.1 17.1
    CPU: (8) x64 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
  Binaries:
    Node: 18.18.2 - ~/.nvm/versions/node/v18.18.2/bin/node
    Yarn: 1.22.21 - ~/.nvm/versions/node/v18.18.2/bin/yarn
    npm: 9.8.1 - ~/.nvm/versions/node/v18.18.2/bin/npm
  npmPackages:
    jest: ^29.7.0 => 29.7.0

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[github-actions]

This issue was closed because it has been stalled for 30 days with no activity. Please open a new issue if the issue is still relevant, linking to this one.

[github-actions]

This issue was closed because it has been stalled for 30 days with no activity. Please open a new issue if the issue is still relevant, linking to this one.