Fix/refactor

src/documents/serialisers.py

@@ -2166,9 +2166,9 @@ class TasksViewSerializer(OwnedObjectSerializer):
         related_document = self.get_related_document(obj)
         request = self.context.get("request")
         user = request.user if request else None
-        if not related_document or not user:
+        document = Document.global_objects.filter(pk=related_document).first()
+        if not related_document or not user or not document:
             return []
-        document = Document.objects.get(pk=related_document)
         duplicates = _get_viewable_duplicates(document, user)
         return list(duplicates.values("id", "title", "deleted_at"))
 

src/documents/tests/test_api_tasks.py

@@ -347,6 +347,7 @@ class TestTasks(DirectoriesMixin, APITestCase):
             content="",
             mime_type="application/pdf",
             checksum=checksum,
+            archive_checksum="another-checksum",
         )
         PaperlessTask.objects.create(
             task_id=str(uuid.uuid4()),