klog.Errorf("failed to sync with latest state: %v", err)
			wc.sendError(err)
			return
		}
	}
	if initialEventsEndBookmarkRequired {
		wc.sendEvent(func() *event {
			e := progressNotifyEvent(wc.initialRev)
			e.isInitialEventsEndBookmark = true
			return e
		}())
	}
	opts := []clientv3.OpOption{clientv3.WithRev(wc.initialRev + 1), clientv3.WithPrevKV()}
	if wc.recursive {