Additional check in content-type view to prevent 500
|Reported by:||Yeago||Owned by:||nobody|
|Cc:||Triage Stage:||Ready for checkin|
|Has patch:||yes||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||no|
In the event that your ContentType doesn't have a model_class associated with it anymore, it would be nice if the resulting url didn't chokedie 500 style.