[Answer]-Django ignoring changes in urls.py

Damn, I just found it – thanks to your post, Alex! I was including it like this:

url(r'^$', include('core.urls', namespace='core')),

instead of like this:

url(r'', include('core.urls', namespace='core')),

So I was excluding the include for all URLs other than the root /.

Thanks for having me look again and more carefully!