fix --> assign document

apps/tag/web/api/v1/api.py

@@ -1,3 +1,4 @@
+import random
 import typing
 
 from django.db import transaction
@@ -761,7 +762,7 @@ class TagDistributionBatchViewSet(
         document = request.FILES.get('dist_exit_document')
         document_url = upload_to_storage(
             document,
-            f'distribution_batch_document_{dist_batch.dist_batch_identity}.{str(document).split(".")[1]}'
+            f'{random.randint(1000, 9999)}_distribution_batch_document.{str(document).split(".")[1]}'
         )
         dist_batch.warehouse_exit_doc = document_url
         dist_batch.save(update_fields=['warehouse_exit_doc'])