Aggregating fields of embedded entities doesn't work

   public void testGroupBy7() {
      QueryFactory qf = getQueryFactory();
      Query q = qf.from(getModelFactory().getUserImplClass())
            .select(Expression.min("addresses.street"))
            .having("name").eq("Spider").toBuilder()
            .build();

      List<Object[]> list = q.list();
      assertEquals(list.get(0)[0], "Bond Street");
}