# HG changeset patch
# User Bryan O'Sullivan <bos@serpentine.com>
# Date 1259102729 28800
# Node ID a9cab6c49d61d3fe10dc524377952f1b1d0bc128
# Parent  ea3acaae25bb93f3f85869f7c7142d20b6d3b324# Parent  193a8d539e21b80baa695002d3c3549fbfe1ace4
Merge with mpm

diff -r 193a8d539e21 -r a9cab6c49d61 mercurial/localrepo.py
--- a/mercurial/localrepo.py	Tue Nov 24 20:40:16 2009 +0100
+++ b/mercurial/localrepo.py	Tue Nov 24 14:45:29 2009 -0800
@@ -128,6 +128,12 @@
             return context.workingctx(self)
         return context.changectx(self, changeid)
 
+    def __contains__(self, changeid):
+        try:
+            return bool(self.lookup(changeid))
+        except error.RepoLookupError:
+            return False
+
     def __nonzero__(self):
         return True