BaseModelFormSet > _construct_form

Hello,

In function _construct_form variable "pk_key" is generated as:

 pk_key = "%s-%s" % (self.add_prefix (i), self.model._meta.pk.name) "

So pk_key is not flexible. Because if I overwrite function "add_prefix" from class "forms.ModelForm", I get error "MultiValueDictKeyError".

My add_prefix function:

def add_prefix(self, field_name):

      return '%s_%s' % (self.prefix, field_name) if self.prefix else field_name

I see a possibility to solve that for now. Overwrite function _construct_form.

Other options?

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