[xurshudyan]

Queue::fakeFor() and Queue::fakeExceptFor() swap the original queue manager back when the callback finishes, but they never release the unique locks taken by jobs dispatched inside the callback. The fake never runs those jobs, so the locks stay in the cache until uniqueFor expires, or forever when it isn't set.

So if the same unique job is dispatched again after the callback, it gets skipped:

Queue::fakeFor(function () {
    ImportUsers::dispatch();
});

ImportUsers::dispatch(); // skipped, the lock is still held

#58718 fixed this for Queue::fake() by calling releaseUniqueJobLocks() when faking again. This PR calls it in the finally block of fakeFor() and fakeExceptFor() too. releaseUniqueJobLocks() now returns early when no unique jobs were pushed, so it doesn't resolve the cache when there is nothing to release.