DeepMap() can't copy dynamic objects

[antonovicha]

        public class D11
        {
            public object D;
        }
        public class D12
        {
            public object D;
        }

        [Test]
        public void Dynamic_to_Dynamic()
        {
            var mapper = ObjectMapperManager
                .DefaultInstance
                .GetMapper<D11, D12>(
                    new DefaultMapConfig()
                    .DeepMap()
                );

            var det = new { D = 1 };
            var result = mapper.Map(new D11() { D = det });

            Assert.AreEqual(det.D, ((dynamic)result.D).D); //FAIL
        }

Instead of deep copy of an object result.D contains empty System.Object.
Possible solution is to construct ExpandoObject and then deep copy all other fields.