Hi. The following line:

https://github.com/zmathew/django-ajax-upload-widget/blob/master/ajax_upload/widgets.py#L44

doesn't seem to play nice with empty forms in formsets, because of this:

https://github.com/django/django/blob/master/django/forms/forms.py#L445

since the initial value will return None, but the value_from_datadict will return False, then the form will appear as changed and with an invalid value. I can't figure out how important that False is there