diff -r b00bd974eef5 -r 97ab6f2dc3c3 mercurial/context.py
--- a/mercurial/context.py	Sat Mar 31 00:02:31 2018 -0400
+++ b/mercurial/context.py	Fri Mar 30 22:46:22 2018 -0700
@@ -419,8 +419,6 @@
                 self._node = repo.changelog.node(changeid)
                 self._rev = changeid
                 return
-            if not pycompat.ispy3 and isinstance(changeid, long):
-                changeid = "%d" % changeid
             if changeid == 'null':
                 self._node = nullid
                 self._rev = nullrev