diff -r bf9894889d82 -r e9cc29be3305 mercurial/store.py
--- a/mercurial/store.py	Mon Sep 17 11:00:38 2012 +0200
+++ b/mercurial/store.py	Tue Sep 18 07:58:50 2012 +0200
@@ -21,6 +21,8 @@
     'data/foo.i.hg/bla.i'
     >>> encodedir('data/foo.i.hg/bla.i')
     'data/foo.i.hg.hg/bla.i'
+    >>> encodedir('data/foo.i\\ndata/foo.i/bla.i\\ndata/foo.i.hg/bla.i\\n')
+    'data/foo.i\\ndata/foo.i.hg/bla.i\\ndata/foo.i.hg.hg/bla.i\\n'
     '''
     return (path
             .replace(".hg/", ".hg.hg/")