default on serialization

models/utils/common.go

@@ -120,13 +120,23 @@ func ModelGenericUpdateOne(change map[string]interface{}, id string, a Accessor)
 	for k, v := range change { // apply the changes, with a flatten method
 		loaded[k] = v
 	}
-	return r, loaded, 200, nil
+	newObj := a.NewObj()
+	b, err = json.Marshal(loaded)
+	if err != nil {
+		return nil, loaded, 400, nil
+	}
+	err = json.Unmarshal(b, newObj)
+	if err != nil {
+		return nil, loaded, 400, nil
+	}
+	return newObj, loaded, 200, nil
 }
 
 // GenericLoadOne loads one object from the database (generic)
 // json expected in entry is a flatted object no need to respect the inheritance hierarchy
 func GenericUpdateOne(change map[string]interface{}, id string, a Accessor) (DBObject, int, error) {
 	obj, loaded, c, err := ModelGenericUpdateOne(change, id, a)
+
 	if err != nil {
 		return nil, c, err
 	}