FuzzyDate | Alfred Workflow to parse a fuzzy date | BPM library

We are using Django (currently 1.11.15) for Speedy Net and Speedy Match. Recently I found out that django.db.models.Model save() method doesn't call full_clean(). I read about it a little (for example on Why doesn't django's model.save() call full_clean()?) and decided it's a better programming practice to call self.full_clean() before saving the model. I implemented it with class ValidateModelMixin (from Django model mixin to force Django to validate (i.e. call full_clean) before save):