mk.commit("/testDel", "+\"b\":{\"name\": \"!\"}", null, null);
String r1 = mk.commit("/testDel", "+\"c\":{\"name\": \"!\"}", null, null);
DocumentNodeState n = ns.getNode("/testDel", Revision.fromString(r1));
assertNotNull(n);
Children c = ns.getChildren(n, null, Integer.MAX_VALUE);
assertEquals(3, c.children.size());
String r2 = mk.commit("/testDel", "-\"c\"", null, null);
n = ns.getNode("/testDel", Revision.fromString(r2));
assertNotNull(n);