mercurial/context.py

--- a/mercurial/context.py	Fri Mar 13 15:19:54 2015 -0700
+++ b/mercurial/context.py	Fri Mar 13 15:23:02 2015 -0700
@@ -266,12 +266,9 @@
         diffopts = patch.diffopts(self._repo.ui, opts)
         return patch.diff(self._repo, ctx2, self, match=match, opts=diffopts)
 
-    @propertycache
-    def _dirs(self):
-        return scmutil.dirs(self._manifest)
+    def dirs(self):
+        return self._manifest.dirs()
 
-    def dirs(self):
-        return self._dirs
 
     def dirty(self, missing=False, merge=True, branch=True):
         return False