# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 2019-11-09 12:23:53
# Node ID a49b2e253035769f26b1bbdb3ce6157366875e6c
# Parent  45d123d840111f590044f81dedb79f6b3489dcfd

index: use `index.rev` in `exchange.fallbackheads`

Differential Revision: https://phab.mercurial-scm.org/D7345

diff --git a/mercurial/exchange.py b/mercurial/exchange.py
--- a/mercurial/exchange.py
+++ b/mercurial/exchange.py
@@ -528,8 +528,8 @@ class pushoperation(object):
         # We can pick:
         # * missingheads part of common (::commonheads)
         common = self.outgoing.common
-        nm = self.repo.changelog.nodemap
-        cheads = [node for node in self.revs if nm[node] in common]
+        rev = self.repo.changelog.index.rev
+        cheads = [node for node in self.revs if rev(node) in common]
         # and
         # * commonheads parents on missing
         revset = unfi.set(