buffer operator emits value on closingNotifier complete

[kkachniarz220]

Describe the bug

The buffer operator emits the empty value on closingNotifier completes.

Expected behavior

No value emitted on closingNotifier completes.

Reproduction code

import { fromEvent, interval, buffer, takeUntil, debounceTime } from 'rxjs';

const addItem = fromEvent(document, 'click').pipe(takeUntil(interval(5000)));

const debounce = addItem.pipe(debounceTime(500));
addItem.pipe(buffer(debounce)).subscribe((d) => console.log(d));

Reproduction URL

https://stackblitz.com/edit/rwbsk1a8?devtoolsheight=50&file=index.ts

Version

7.8.1

Environment

No response

Additional context

No response