fix relayed node issue (#2826)

pro/logic/relays.go

@@ -131,7 +131,7 @@ func updateRelayNodes(relay string, oldNodes []string, newNodes []string) []mode
 
 func RelayUpdates(currentNode, newNode *models.Node) bool {
 	relayUpdates := false
-	if servercfg.IsPro && newNode.IsRelay && len(newNode.RelayedNodes) > 0 {
+	if servercfg.IsPro && newNode.IsRelay {
 		if len(newNode.RelayedNodes) != len(currentNode.RelayedNodes) {
 			relayUpdates = true
 		} else {