X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/2228890d6210e10d9ea3c24cb123a4d6b47f36b9..2410213857d3cfb08a40350a9302b62d05df3c62:/blib2to3/pytree.py

diff --git a/blib2to3/pytree.py b/blib2to3/pytree.py
index b24866e..61df2b6 100644
--- a/blib2to3/pytree.py
+++ b/blib2to3/pytree.py
@@ -132,6 +132,8 @@ class Base(object):
         return node.lineno
 
     def changed(self):
+        if self.was_changed:
+            return
         if self.parent:
             self.parent.changed()
         self.was_changed = True