# HG changeset patch
# User Benoit Boissinot <benoit.boissinot@ens-lyon.org>
# Date 1153094330 -7200
# Node ID 156fb1feab625490d41dba17d97cf4dc3298319f
# Parent  a49534aac47db5acc64cdf7d7026dee3cb7b31bc
lookup should allow -1 to represent nullid (if passed an int as arg)

diff --git a/mercurial/revlog.py b/mercurial/revlog.py
--- a/mercurial/revlog.py
+++ b/mercurial/revlog.py
@@ -746,10 +746,7 @@ class revlog(object):
         if id in self.nodemap:
             return id
         if type(id) == type(0):
-            rev = id
-            if rev < 0: rev = self.count() + rev
-            if rev < 0 or rev >= self.count(): return None
-            return self.node(rev)
+            return self.node(id)
         try:
             rev = int(id)
             if str(rev) != id: raise ValueError