How to fix: "RuntimeWarning: Model <my_model> was already registered."
Question: Since upgrading Django, I've been getting this error in iPython when I do
imports:

> RuntimeWarning: Model 'docket.search' was already registered. Reloading
> models is not advised as it can lead to inconsistencies, most notably with
> related models.

I'm guessing this is some automatic feature of iPython, but is there an easy
solution? Is this something I even need to solve?


Answer: I have gotten this error because of automatic imports I had in my
`__init__.py`. I had some old code that imported by signals there, and moving
that import code to AppConfig instead fixed it.

