diff --git a/base.py b/base.py
index af93f43..51208b4 100644
--- a/base.py
+++ b/base.py
@@ -60,10 +60,10 @@ class Client(HandlerBase):
                 if node is None:
 
                     def change_callback(dictionary=self.dictionary, kind_uri=(kind, uri)):
+                        # do not keep changed nodes in dict
                         dictionary.pop(kind_uri, None)
 
                     node = server.interactor_classes[kind](uri, self.node_map, change_callback)
-
                     self.dictionary[kind, uri] = node
                 else:
                     node.update_node_map(self.node_map)