check node not already in locals

--HG--
branch : _ast_compat

1 files changed, 2 insertions, 1 deletions

diff --git a/builder.py b/builder.py
index 4c6a43c1..45a8fed7 100644
--- a/builder.py
+++ b/builder.py
@@ -192,7 +192,8 @@ class ASTNGBuilder:
                     continue
                 if member in self._done:
                     class_node = self._done[member]
-                    node.add_local_node(class_node, name)
+                    if not class_node in node.locals.get(name, ()):
+                        node.add_local_node(class_node, name)
                 else:
                     class_node = object_build_class(node, member)
                     # recursion