title: How to override models defined in installed apps in Django?
body: <p>Is it possible to redefine a model used in an INSTALLED_APP without modifying the app in question?  For example, django-basic-blog has a Post model which I would like to add a field to.  I could edit django-basic-blog directly but for code portability I'd like to build on top of it.  I don't want to subclass as I want to preserve all existing references to the Post model.  Thanks in advance!</p>