vfs: promises.watch() resolves `{ done: true }` instead of rejecting with a pre-aborted signal

[trivikr]

Version

main

Platform

All

Subsystem

vfs

What steps will reproduce the bug?

import { create } from 'node:vfs';

const myVfs = create();
myVfs.writeFileSync('/p.txt', 'a');

const iter = myVfs.promises.watch('/p.txt', {
  signal: AbortSignal.abort()
});
iter.next().then(
  (r) => console.log('resolved:', r),
  (e) => console.log('rejected:', e.code),
);

How often does it reproduce? Is there a required condition?

Always

What is the expected behavior? Why is that the expected behavior?

.next() rejects with AbortError (code: 'ABORT_ERR'), matching native fs.promises.watch(dir, { signal: AbortSignal.abort() }).next(), which rejects with ABORT_ERR.

What do you see instead?

resolved: { done: true, value: undefined }

The iterator silently completes.

Additional information

No response