djust 1.2.1rc2

A form field with a callable initial gets the value, not the function. FormMixin and WizardMixin read field.initial directly, so UUIDField(initial=uuid.uuid4) or initial=timezone.now stored the function itself. Both now use Django's form.get_initial_for_field(), which calls it, at mount, in reset_form(), and in the wizard's form_data and as_live_field. In FormMixin, the bug was hidden until #2974: the sync after form_valid used to overwrite the function, but once reset_form() inside form_valid stopped being undone, the function object reached the page (<function uuid4 at 0x…>) and failed the next submit with "Enter a valid UUID". Found by running djust.org's test suite against 1.2.1rc1. This also matches Django in two smaller ways:

• A form's own self.initial[...] now wins over the field's initial.
• datetime/time initials drop microseconds when the widget doesn't render them.

The wizard also stops turning initial=0 or initial=False into "".