diff -r 37eedb1a1848 -r 602f7c1ab954 mercurial/localrepo.py
--- a/mercurial/localrepo.py	Tue Jun 03 09:34:14 2008 +0200
+++ b/mercurial/localrepo.py	Thu Jun 05 16:25:11 2008 +0200
@@ -1985,7 +1985,7 @@
             self.ui.status(_("adding changesets\n"))
             cor = cl.count() - 1
             chunkiter = changegroup.chunkiter(source)
-            if cl.addgroup(chunkiter, csmap, trp, 1) is None and not emptyok:
+            if cl.addgroup(chunkiter, csmap, trp) is None and not emptyok:
                 raise util.Abort(_("received changelog group is empty"))
             cnr = cl.count() - 1
             changesets = cnr - cor