Workaround if email step is not needed

aleksis/apps/paweljong/views.py

@@ -540,7 +540,10 @@ class RegisterEventWizardView(SessionWizardView):
 
     def done(self, form_list, **kwargs):
         event = Event.objects.get(slug=self.kwargs["slug"])
-        cleaned_data_email = self.get_cleaned_data_for_step("email")
+        try:
+            cleaned_data_email = self.get_cleaned_data_for_step("email")
+        except KeyError:
+            cleaned_data_email = False
         cleaned_data_contact_details = self.get_cleaned_data_for_step("contact_details")
         cleaned_data_guardians = self.get_cleaned_data_for_step("guardians")
         cleaned_data_register = self.get_cleaned_data_for_step("register")