diff -r b9228a2219ca -r f84b0e926eb2 mercurial/localrepo.py
--- a/mercurial/localrepo.py	Fri Aug 05 14:23:58 2016 +0200
+++ b/mercurial/localrepo.py	Fri Aug 05 14:25:21 2016 +0200
@@ -71,7 +71,7 @@
     """
 
     def join(self, obj, fname):
-        return obj.join(fname)
+        return obj.vfs.join(fname)
     def __get__(self, repo, type=None):
         if repo is None:
             return self