diff -r b644287e79a8 -r fb8658ad9e8d mercurial/store.py
--- a/mercurial/store.py	Sat Sep 15 21:42:52 2012 +0200
+++ b/mercurial/store.py	Sat Sep 15 21:42:58 2012 +0200
@@ -161,8 +161,7 @@
                 res[i] = n
         if n[-1] in '. ':
             # encode last period or space ('foo...' -> 'foo..~2e')
-            n = n[:-1] + "~%02x" % ord(n[-1])
-            res[i] = n
+            res[i] = n[:-1] + "~%02x" % ord(n[-1])
     return '/'.join(res)
 
 _maxstorepathlen = 120