diff -r a710936c3037 -r d3ac759a6d66 mercurial/localrepo.py
--- a/mercurial/localrepo.py	Mon Jul 25 15:08:37 2011 +0300
+++ b/mercurial/localrepo.py	Mon Jul 25 15:08:37 2011 +0300
@@ -175,7 +175,7 @@
     def _bookmarkcurrent(self):
         return bookmarks.readcurrent(self)
 
-    @propertycache
+    @filecache('00changelog.i', True)
     def changelog(self):
         c = changelog.changelog(self.sopener)
         if 'HG_PENDING' in os.environ: