Fix tests by handling new submission draft

Author: sandeepsajan0

hypha/apply/funds/models/submissions.py

@@ -662,9 +662,10 @@ def from_draft(self) -> Self:
         Returns:
             Self with the `form_data` attribute updated.
         """
-        self.form_data = self.deserialised_data(
-            self, self.draft_revision.form_data, self.form_fields
-        )
+        if self.draft_revision:
+            self.form_data = self.deserialised_data(
+                self, self.draft_revision.form_data, self.form_fields
+            )
 
         return self
 
@@ -744,8 +745,13 @@ def clean_submission(self):
         self.process_form_data()
         self.ensure_user_has_account()
         # pass current submission data to avoid file save on every submit(if file is not updated)
-        current_submission = ApplicationSubmission.objects.get(id=self.id)
-        self.process_file_data(self.form_data, current_submission.from_draft().raw_data)
+        if self.id:
+            current_submission = ApplicationSubmission.objects.get(id=self.id)
+            self.process_file_data(
+                self.form_data, current_submission.from_draft().raw_data
+            )
+        else:
+            self.process_file_data(self.form_data)
 
     def get_assigned_meta_terms(self):
         """Returns assigned meta terms excluding the 'root' term"""
@@ -797,7 +803,7 @@ def save(self, *args, update_fields=None, skip_custom=False, **kwargs):
                     f"{self.get_from_parent('submission_id_prefix')}{self.id}"
                 )
 
-            self.process_file_data(files, self.from_draft().raw_data)
+            self.process_file_data(files)
             AssignedReviewers.objects.bulk_create_reviewers(
                 list(self.get_from_parent("reviewers").all()),
                 self,