--- a/mercurial/localrepo.py	Sat Jan 20 15:26:31 2018 -0800
+++ b/mercurial/localrepo.py	Sat Jan 20 13:41:57 2018 -0800
@@ -197,7 +197,7 @@
                   **kwargs):
         chunks = exchange.getbundlechunks(self._repo, source, heads=heads,
                                           common=common, bundlecaps=bundlecaps,
-                                          **kwargs)
+                                          **kwargs)[1]
         cb = util.chunkbuffer(chunks)
 
         if exchange.bundle2requested(bundlecaps):