diff -r 61ff209fc01d -r 0c4d5e01b31f mercurial/wireproto.py
--- a/mercurial/wireproto.py	Thu Apr 16 03:56:50 2015 -0400
+++ b/mercurial/wireproto.py	Thu Apr 16 03:17:37 2015 -0400
@@ -858,6 +858,8 @@
                 return pusherr(str(exc))
 
         bundler = bundle2.bundle20(repo.ui)
+        for out in getattr(exc, '_bundle2salvagedoutput', ()):
+            bundler.addpart(out)
         try:
             raise
         except error.BundleValueError, exc: