Accessing getters on EntityIterator directly sometimes buggy

[Swader]

When accessing methods on the EntityIterator directly, one should always get the same results as if accessed directly on the first subelement of the Iterator. However, this was sometimes buggy - e.g. when properties were dynamically generated via certain methods. In such cases, methods should be tried first.

Offending code is __call and __get magic metods inside EntityIterator.