: null);
        builder.profiles(prune(model.getProfiles()));

        model = builder.build();
        String modelVersion = new MavenModelVersion().getModelVersion(model);
        if (!ModelBuilder.MODEL_VERSION_4_0_0.equals(modelVersion) && !preserveModelVersion) {
            warnNotDowngraded(project);
        }
        model = model.withModelVersion(modelVersion);

        final Set<MavenProject> projectsIncludingParents = new HashSet<>();
        for (MavenProject project : session.getProjects()) {
            superPomModels.computeIfAbsent(
                    project.getModelVersion(),
                    v -> superPomProvider.getSuperModel(v).getDelegate());
            boolean isAdded = projectsIncludingParents.add(project);
            MavenProject parent = project.getParent();