DATAGRAPH-186 default value for readonly relationship collections

spring-data-neo4j-aspects/src/test/java/org/springframework/data/neo4j/aspects/support/NodeEntityTest.java

@@ -212,4 +212,10 @@ public class NodeEntityTest extends EntityTestBase {
         attribute.setValue("test");
         persist(attribute);
     }
+    @Test
+    public void testAccessReadOnlyCollectionMakesEntityDirty() {
+	    Group g = new Group();
+	    g.getReadOnlyPersons();
+	    g.persist();
+    }
 }