Robuta

https://code.djangoproject.com/ticket/13776?cnum_hist=17&cversion=0 #13776 (is_valid() with null field value on ModelForms from models with non-nullable ForeignKeys... https://www.pluralsight.com/courses/django-forms-modelforms Django 4 Forms and ModelForms django forms https://groups.google.com/g/django-developers/c/M-QfAsj8X3w ModelForms and ForeignKeys causing ValueError causing valueerror