From ff7ad6621a2d003eb5281a4ae570635c6e693cf6 Mon Sep 17 00:00:00 2001
From: Chris Dyer <cdyer@cab.ark.cs.cmu.edu>
Date: Mon, 13 Aug 2012 09:59:00 -0400
Subject: maybe fix?

---
 decoder/hg_test.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/decoder/hg_test.h b/decoder/hg_test.h
index c098961d..e96cb0b1 100644
--- a/decoder/hg_test.h
+++ b/decoder/hg_test.h
@@ -68,6 +68,7 @@ void AddNullEdge(Hypergraph* hg) {
   TRule x;
   x.arity_ = 0;
   hg->nodes_[0].in_edges_.push_back(hg->AddEdge(TRulePtr(new TRule(x)), Hypergraph::TailNodeVector())->id_);
+  hg->edges_.back().head_node_ = 0;
 }
 
 void HGSetup::CreateTinyLatticeHG(Hypergraph* hg) {
-- 
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