Fixing broken document migration

* adds changes to document migration to correctly migrate documents

api/utils/serializer/v1/intervention.py

@@ -133,7 +133,6 @@ class InterventionAPISerializerV1(AbstractModelAPISerializerV1,
             id__in=payments
         )
         obj.payments.set(payments)
-        obj.send_data_to_egon()
         return obj
 
     def create_model_from_json(self, json_model, user):
@@ -201,6 +200,7 @@ class InterventionAPISerializerV1(AbstractModelAPISerializerV1,
             obj.save()
 
         obj.mark_as_edited(user, edit_comment="API update")
+        obj.send_data_to_egon()
 
         celery_update_parcels.delay(obj.geometry.id)