# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@fb.com>
# Date 2014-09-17 17:59:30
# Node ID 64673dc48931f6ebeb5ab1c439b2cd306db176c0
# Parent  8ea3f47bcaff75f7203b699b810cfc3a9dc673aa

revset: remove invalid value in the origin set

Same as the parents related revsets, origin had some invalid value in the
computed set. We remove them.

diff --git a/mercurial/revset.py b/mercurial/revset.py
--- a/mercurial/revset.py
+++ b/mercurial/revset.py
@@ -1167,6 +1167,7 @@ def origin(repo, subset, x):
             src = prev
 
     o = set([_firstsrc(r) for r in args])
+    o -= set([None])
     return subset.filter(o.__contains__)
 
 def outgoing(repo, subset, x):