Use all_cleaned_data instead of seperate cleaned_data per step

aleksis/apps/paweljong/views.py

@@ -305,6 +305,12 @@ class AccountRegisterWizardView(SessionWizardView):
     template_name = "paweljong/account_wizard.html"
     file_storage = settings.DEFAULT_FILE_STORAGE
 
+    def get_cleaned_data_for_step(self, step):
+        try:
+            return super().get_cleaned_data_for_step(step)
+        except KeyError:
+            return None
+
     def get_form_kwargs(self, step):
         kwargs = super().get_form_kwargs()
         if step == "email":
@@ -386,6 +392,12 @@ class RegisterEventWizardView(SessionWizardView):
     template_name = "paweljong/event/register_wizard.html"
     file_storage = settings.DEFAULT_FILE_STORAGE
 
+    def get_cleaned_data_for_step(self, step):
+        try:
+            return super().get_cleaned_data_for_step(step)
+        except KeyError:
+            return None
+
     def get_template_names(self):
         return [TEMPLATES[self.steps.current]]