diff -r d6d0f1ed8ebb -r 4cfdec944edf contrib/shrink-revlog.py
--- a/contrib/shrink-revlog.py	Fri May 10 20:37:41 2013 +0200
+++ b/contrib/shrink-revlog.py	Fri May 10 21:03:01 2013 +0200
@@ -119,7 +119,7 @@
     try:
         bundler = changegroup.bundle10()
         bundler.start(lookup)
-        group = util.chunkbuffer(r1.group(order, bundler))
+        group = util.chunkbuffer(bundler.group(order, r1))
         group = changegroup.unbundle10(group, "UN")
         r2.addgroup(group, unlookup, tr)
     finally: