src/Tree/Controllers/TreeController.cs

@@ -338,15 +338,11 @@ namespace Coscine.Api.Tree.Controllers
             }
             else
             {
-                var tempGraph = new Graph();
-                StringParser.Parse(tempGraph, metadataObject.Value<string>("metadata"), MimeTypesHelper.GetParser(mimeType));
-                var triplesList = tempGraph.Triples.ToArray();
-                var subjectNode = tempGraph.CreateUriNode(graphNameUri);
-                foreach (var triple in triplesList)
+                var tempGraph = new Graph
                 {
-                    tempGraph.Retract(triple);
-                    tempGraph.Assert(new Triple(subjectNode, triple.Predicate, triple.Object));
-                }
+                    BaseUri = graphNameUri
+                };
+                StringParser.Parse(tempGraph, metadataObject.Value<string>("metadata"), MimeTypesHelper.GetParser(mimeType));
                 json = JObject.Parse(VDS.RDF.Writing.StringWriter.Write(tempGraph, MimeTypesHelper.GetWriter("application/rdf+json")));
             }
 

src/Tree/Tree.csproj

@@ -5,7 +5,7 @@
 		<AssemblyName>Coscine.Api.Tree</AssemblyName>
 		<GenerateDocumentationFile>true</GenerateDocumentationFile>
 		<TargetFramework>net6.0</TargetFramework>
-		<Version>2.11.1</Version>
+		<Version>2.11.2</Version>
 	</PropertyGroup>
 	<PropertyGroup>
 		<Authors>RWTH Aachen University</Authors>