--- a/cubicweb/server/session.py	Tue Nov 15 11:44:05 2016 +0100
+++ b/cubicweb/server/session.py	Wed Nov 16 17:12:09 2016 +0100
@@ -168,6 +168,7 @@
         if self.oldwrite is not None:
             self.cnx.write_security = self.oldwrite
 
+
 HOOKS_ALLOW_ALL = object()
 HOOKS_DENY_ALL = object()
 DEFAULT_SECURITY = object()  # evaluated to true by design