Correct method usage

src/Tree/Controllers/TreeController.cs

@@ -142,7 +142,7 @@ namespace Coscine.Api.Tree.Controllers
                 var resourceTypeInformation = resourceTypeDefinition.GetResourceTypeInformation().Result;
                 var metadataInfos = new List<ResourceEntry>(fileInfos);
 
-                var metadataIds = _rdfStoreConnector.GetMaxMetadataIds(resourceId);
+                var metadataIds = _rdfStoreConnector.ListMetadata(resourceId);
 
                 // Add to metadata infos, if no "physical" file for it exists
                 if (!metadataInfos.Any((metadataInfo) => metadataInfo.Key == path))