Avoid synchronizing from scratch due to err

weed/filer/meta_aggregator.go

@@ -100,7 +100,8 @@ func (ma *MetaAggregator) loopSubscribeToOnefiler(f *Filer, self pb.ServerAddres
 		}
 		if err != nil {
 			glog.V(0).Infof("subscribing remote %s meta change: %v", peer, err)
-		} else if lastTsNs < nextLastTsNs {
+		}
+		if lastTsNs < nextLastTsNs {
 			lastTsNs = nextLastTsNs
 		}
 		time.Sleep(1733 * time.Millisecond)