modelMerger.mergePatternSet_Includes( target, source, true, null );

        assertThat( target.getIncludes(), contains( "first", "second", "third" ) );
    }

    @Test
    public void mergeSameMailingLists()
    {
        MailingList mailingList = new MailingList();
        mailingList.setName( "name" );

        Model target = new Model();
        target.setMailingLists( Arrays.asList( mailingList ) );