Missing docs how to emulate "ON DELETE SET NULL"
|Reported by:||Thomas Güttler||Owned by:||nobody|
|Has patch:||no||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||no|
The documentation does not explain how to emulate "ON DELETE SET NULL":
Even a delete() method of your model does not help, since this is not called
if you delete objects with bulk delete of a queryset.