--- a/mercurial/scmutil.py	Wed Dec 06 16:43:07 2017 -0500
+++ b/mercurial/scmutil.py	Fri Dec 08 01:23:34 2017 +0100
@@ -1262,7 +1262,7 @@
         @reportsummary
         def reportnewcs(repo, tr):
             """Report the range of new revisions pulled/unbundled."""
-            newrevs = list(tr.changes.get('revs', set()))
+            newrevs = tr.changes.get('revs', xrange(0, 0))
             if not newrevs:
                 return