Wrap in db transaction

src/documents/management/commands/convert_mariadb_uuid.py

@@ -1,6 +1,7 @@
 from django.core.management.base import BaseCommand
 from django.db import connection
 from django.db import models
+from django.db import transaction
 
 from documents.models import Document
 
@@ -33,4 +34,5 @@ class Command(BaseCommand):
             )
 
     def handle(self, **options):
+        with transaction.atomic():
             self.convert_field(Document, "transaction_id", null=True)