+ newRepos.stream().map(s -> "    " + s).collect(Collectors.joining("\n")));
                }
            }

            // we pass a cloned model, so that resolving the parent version does not affect the returned model
            ModelData parentData = readParent(model, currentData.source(), request, problems);

            if (parentData == null) {

            }

            // add repositories specified by the current model so that we can resolve the parent
            configureResolver(request.getModelResolver(), modelv4, problems, false);

            // we pass a cloned model, so that resolving the parent version does not affect the returned model
            ModelData parentData = readParent(new Model(modelv4), currentData.getSource(), request, problems);