Model target, Model source, boolean sourceDominant, Map<Object, Object> context) {
        target.setContributors(merge(
                target.getContributors(), source.getContributors(), sourceDominant, new ContributorKeyComputer()));
    }

    protected void mergeModel_IssueManagement(
            Model target, Model source, boolean sourceDominant, Map<Object, Object> context) {
        IssueManagement src = source.getIssueManagement();