# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 2019-11-17 05:36:50
# Node ID 099e9610308546bfbf6ff946f4a38a814cfbbc0d
# Parent  a7a4b3b28c52451be968b2465b385be8c68c35b7

localrepo: also fastpath `nullrev` in __getitem__

As explained earlier, nullrev will exist in all repository, we do not need any
special checking.

Differential Revision: https://phab.mercurial-scm.org/D7480

diff --git a/mercurial/localrepo.py b/mercurial/localrepo.py
--- a/mercurial/localrepo.py
+++ b/mercurial/localrepo.py
@@ -1531,7 +1531,7 @@ class localrepository(object):
             ]
 
         # dealing with some special values
-        if changeid == b'null':
+        if changeid == b'null' or changeid == nullrev:
             return context.changectx(self, nullrev, nullid)
         if changeid == b'tip':
             node = self.changelog.tip()