MongoEngine/mongoengine — pull request #441 by Karmak23 (2013-08-12 17:13:18+00:00)
Title: Fix the ._get_db() attribute after a Document.switch_db()

Without this patch, I've got:

```
myobj._get_db()

>

```

I need to `myobj._get_db()()` to get the database.

I felt this like a bug.

regards,