Prevent error if data is not converted to the new form

opentech/apply/funds/models.py

@@ -580,7 +580,7 @@ class ApplicationSubmission(WorkflowHelpers, BaseStreamForm, AbstractFormSubmiss
 
         for field in self.form_fields:
             if isinstance(field.block, UploadableMediaBlock):
-                file = self.form_data[field.id]
+                file = self.form_data.get(field.id, {})
                 self.form_data[field.id] = self.handle_files(file)
 
         if not self.id:

opentech/apply/funds/views.py

@@ -158,9 +158,9 @@ class SubmissionEditView(UpdateView):
         instance = kwargs.pop('instance')
         form_data = instance.form_data
 
-        # convert certain data to the correct field id
         for field in self.object.form_fields:
             if isinstance(field.block, MustIncludeFieldBlock):
+                # convert certain data to the correct field id
                 try:
                     response = form_data[field.block.name]
                 except KeyError: