No problem.  Do the tests pass for you on 22c0a8d3b785acf676ab79a6c1cdb5c3ef04356a?  I'm getting a failure:

FAIL 13 ms
C: docToModifier
- fail — assert_equal - expected {"$set":{"a":1,"b":"foo","c":"2014-04-09T21:30:06.131Z","d.a":1,"d.b":"foo","d.c":"2014-04-09T21:30:06.131Z","d.d.0.a":1,"d.d.0.b":"foo","d.d.0.c":"2014-04-09T21:30:06.131Z","d.d.0.d.a":1,"d.e":[1,2]},"$unset":{"e":"","f":""}} - actual {"$set":{"a":1,"b":"foo","c":"2014-04-09T21:30:06.131Z","d.a":1,"d.b":"foo","d.c":"2014-04-09T21:30:06.131Z","d.d":[{"a":1,"b":"foo","c":"2014-04-09T21:30:06.131Z","d":{"a":1}}],"d.e":[1,2]},"$unset":{"e":"","f":""}} - not - filename http://localhost:2333/packages/meteor-autoform:tests.js?4b5d705eb888be890606d174dab75cc31e73ee08 - line 101