branchRev = mk.commit("/", ">\"a\" : \"b\"", branchRev, null);
branchRev = mk.commit("/", ">\"b\" : \"a\"", branchRev, null);
mk.merge(branchRev, null);
String json = mk.getNodes("/a", null, 0, 0, -1, null);
JSONParser parser = new JSONParser();
JSONObject obj = (JSONObject) parser.parse(json);
assertTrue(obj.containsKey("foo"));
}