// This is rare enough that it doesn't justify making deep-copy of the
		// object (done by newCachingObject) every time.
	case watch.Deleted:
		// Don't wrap Object for delete events - these are not to deliver any
		// events. Only wrap PrevObject.
		if object, err := newCachingObject(event.PrevObject); err == nil {
			// Update resource version of the object.