From 62c502cd9dc4637934f846caa9587a2aebca9ee9 Mon Sep 17 00:00:00 2001
From: Garret Rieger <grieger@google.com>
Date: Thu, 9 Sep 2021 09:57:42 -0700
Subject: [PATCH] [repacker] correctly update incoming_edges in duplicate.

---
 src/hb-repacker.hh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/hb-repacker.hh b/src/hb-repacker.hh
index d2078938e..d5a603d38 100644
--- a/src/hb-repacker.hh
+++ b/src/hb-repacker.hh
@@ -427,7 +427,6 @@ struct graph_t
   {
     positions_invalid = true;
     distance_invalid = true;
-    // TODO(grieger): compute new distance instead of invalidation.
 
     auto* clone = vertices_.push ();
     auto& child = vertices_[node_idx];
@@ -442,9 +441,13 @@ struct graph_t
     clone->obj.tail = buffer->tail;
     clone->distance = child.distance;
     clone->space = child.space;
+    clone->incoming_edges = 0;
 
     for (const auto& l : child.obj.links)
+    {
       clone->obj.links.push (l);
+      vertices_[l.objidx].incoming_edges++;
+    }
 
     check_success (!clone->obj.links.in_error ());