diff -r bbc24c0753a0 -r 127281884959 mercurial/verify.py
--- a/mercurial/verify.py	Wed Apr 22 00:55:32 2009 +0200
+++ b/mercurial/verify.py	Wed Apr 22 00:56:06 2009 +0200
@@ -171,7 +171,7 @@
         elif size > 0:
             storefiles[f] = True
 
-    files = util.sort(util.unique(filenodes.keys() + filelinkrevs.keys()))
+    files = util.sort(set(filenodes.keys() + filelinkrevs.keys()))
     for f in files:
         lr = filelinkrevs[f][0]
         try: