✨ [#296] Clear _zaak_url after deletion

Author: SilviaAmAm

backend/src/openarchiefbeheer/destruction/models.py

@@ -285,6 +285,7 @@ def process_deletion(self) -> None:
 
         self.zaak = None
         self.processing_status = InternalStatus.succeeded
+        self._zaak_url = ""
         self.save()