diff -r fc06c5260639 -r 719e64bf9ec2 mercurial/scmutil.py
--- a/mercurial/scmutil.py	Sun Mar 12 00:42:46 2017 -0500
+++ b/mercurial/scmutil.py	Sun Mar 12 00:47:39 2017 -0500
@@ -328,7 +328,7 @@
     if revs:
         s = hashlib.sha1()
         for rev in revs:
-            s.update('%s;' % rev)
+            s.update('%d;' % rev)
         key = s.digest()
     return key