ENH: update_acl returns entity

src/caosdb/common/models.py

@@ -777,6 +777,7 @@ class Entity(object):
             e = Container().retrieve(query=self.id, sync=False)[0]
         e.acl = ACL(self.acl.to_xml())
         e.update()
+        return e
 
     def delete(self, raise_exception_on_error=True):
         return Container().append(self).delete(