@@ -231,7 +231,8 @@ the following option identifiers are defined as constants:
 .. py:data:: OPT_SERVER_CONTROLS
 
    Server-side request controls that libldap attaches to every operation
-   on the connection, for example
+   on the connection unless instructed otherwise (e.g. with
+   `search_ext(..., serverctrls=[...], ...)`), for example
    :py:class:`ldap.controls.sessiontrack.SessionTrackingControl`.
    Same rules as :py:data:`OPT_CLIENT_CONTROLS`. Controls meant for a
    single operation belong in the ``serverctrls`` argument of that