Break out of for-loop when field found
Break out of for-loop when field found

Matching the `return` statement that the previous commit replaced.

yehoshuk/django-authority,jezdez/django-authority,shashkin/django-authority,AminKAli/django-authority,jlward/django-authority,yehoshuk/django-authority,barseghyanartur/django-authority,shashkin/django-authority,jazzband/django-authority,jezdez/django-authority,jazzband/django-authority,jlward/django-authority,barseghyanartur/django-authority,PolicyStat/django-authority,PolicyStat/django-authority,DylanLukes/django-authority