Form.has_changed()
Use the has_changed() method on your Form when you need to check if the form data has been changed from the initial data.
>>> data = {'subject': 'hello',
... 'message': 'Hi there',
... 'sender': 'foo@example.com',
... 'cc_myself': True}
>>> f = ContactForm(data, initial=data)
>>> f.has_changed()
False
When the form is submitted, we reconstruct it and provide the original data so that the comparison can be done:
>>&g
