Fields allowed to be null are also specified as allowed to be blank in order for Django admin to understand that these fields don't need a value.
Fields allowed to be null are also specified as allowed to be blank in order for Django admin to understand that these fields don't need a value.

ICT-Infer/timelog,saas-by-erik/timelog-core,ICT-Infer/timelog,ICT-Infer/timelog,erikano/django-timelog