fix unmarshaling

Signed-off-by: Jörn Friedrich Dreyer <jfd@butonic.de>

changelog/unreleased/fix-natsjskv-registry-2.md

@@ -2,4 +2,5 @@ Bugfix: Repair nats-js-kv registry
 
 The registry would always send traffic to only one pod. This is now fixed and load should be spread evenly. Also implements watcher method so the cache can use it.
 
+https://github.com/owncloud/ocis/pull/9726
 https://github.com/owncloud/ocis/pull/9656

ocis-pkg/natsjsregistry/watcher.go

@@ -47,13 +47,14 @@ func (w *Watcher) Next() (*registry.Result, error) {
 		return nil, errors.New("watcher stopped")
 	}
 
-	var svc *registry.Service
-	if err := json.Unmarshal(kve.Value.Data, svc); err != nil {
+	var svc registry.Service
+	if err := json.Unmarshal(kve.Value.Data, &svc); err != nil {
+		_ = w.stop()
 		return nil, err
 	}
 
 	return &registry.Result{
-		Service: svc,
+		Service: &svc,
 		Action:  kve.Action,
 	}, nil
 }