Remove superfluous queryset definition on model form.

biscuit/apps/exlibris/forms.py

@@ -43,7 +43,6 @@ class BookCopyEditForm(forms.ModelForm):
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
-        self.fields['borrower'].queryset = Person.objects.all()
         self.fields['borrower'].disabled = True