node: 'exit' event is emitted twice when process.exit() is called

[kt3k]

$ deno repl --unstable --compat
Deno 1.17.0+ac06797
exit using ctrl+d or close()
> process.on("exit", () => console.log("exit")); process.exit();
exit
exit

This causes npm error at exit

[bartlomieju]

I think I know what's the problem. I'll look into it.