}

    @Override
    protected void mergeModel_MailingLists(
            Model.Builder builder, Model target, Model source, boolean sourceDominant, Map<Object, Object> context) {
        if (target.getMailingLists().isEmpty()) {
            builder.mailingLists(source.getMailingLists());
        }
    }

    @Override
    protected void mergeModelBase_Modules(