Tree __get__ is inconsistent with __contains__

[imbuedhope]

Since #316 Tree.__contains__() checks subdirectories but this is at odds with Tree.__get__() since it does not return objects for qeries that return True for Tree.__contains__().

This is inconsistent. Tree.__get__() should also return objects from subdirectories if Tree.__contains__() returns True.

[jdavid]

This is not what I see reading the code and the unit tests,
https://github.com/libgit2/pygit2/blob/master/test/test_tree.py#L74

By the way it's tree[..] (or tree.__getitem__(..)) not tree.__get__(..)

Do you have an example that proves otherwise?

[imbuedhope]

It looks like something else was causing the issue. I can't seem to isolate the behavior.