An error occurs when saving a formset that contains a ModelDialogForm.

[amikphoto]

When saving a formset containing a ModelDialogForm in the construct_instance() function in collection.py, an error occurs because the DialogModelForm does not have cleaned_data. Am I doing something wrong? Or is there a bug?

[jrief]

Can one of my demos be used to reproduce this error?

[amikphoto]

The closest in Testapp is the EditIssueCollection form. But in this case, the function form_collection_valid(self, form_collection):
return JsonResponse({'success_url': self.get_success_url()}) returns json.
If writing to the database is implied, then form_collection_valid calls the construct_instance function, where the error occurs.