TypeScript Version: 4.1.2

Search Terms: require.main module

When using Node.js's recommended approach to check if a module is the main module, tsc chokes on the types it infers:

Code
Note: This is JavaScript!

if (require.main === module) { // ERROR TS2367 The types "Module | undefined" and "{ "\"c:/Repositories/ioBroker.test/repro\"": number; }" have no overlap
	module.exports = 1; // ERROR TS2339 The property exports does not exist on type `never`
}

Expected behavior:
no error

Actual behavior:
bunch of incorrect errors (see code). I'm not even sure what that type which is inferred for module is supposed to mean.

Playground Link: doesn't work on the playground

Related Issues: #30088