id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
14498	Forms passed to FormWizard.process_step are not guaranteed to have clean validate data	Staś Małolepszy	Luke Plant	"The docs for !FormWizard.process_step at source:trunk/django/contrib/formtools/wizard.py (line 263) read:

{{{
Hook for modifying the FormWizard's internal state, given a fully validated Form object. The Form is guaranteed to have clean, valid data.
}}}

There is however a case in !FormWizard._ _call_ _ when this will not be true.

In source:trunk/django/contrib/formtools/wizard.py (line 95), the forms for each previous step are instantiated but they are not validated, which makes them not have the `cleaned_data` property.

{{{
for i in range(current_step):
    form = self.get_form(i, request.POST)
    if not self._check_security_hash(request.POST.get(""hash_%d"" % i, ''), request, form):
        return self.render_hash_failure(request, i)
    self.process_step(request, form, i)
}}}

A solution would be to call form.is_valid in the above loop, or to edit the docs to account for this particular case."		closed	contrib.formtools	1.2		fixed	regression	niels.busch@… stas@…	Accepted	1	0	0	0	0	0