From 7c82710dbf4604c31a4f95417be0e485cabc40e7 Mon Sep 17 00:00:00 2001
From: Tom MacWright <tom@macwright.org>
Date: Fri, 7 Dec 2012 10:11:42 -0500
Subject: [PATCH] Fix deleting areas

---
 js/id/actions/delete_way.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/js/id/actions/delete_way.js b/js/id/actions/delete_way.js
index 86fe3a3bc..a16309e56 100644
--- a/js/id/actions/delete_way.js
+++ b/js/id/actions/delete_way.js
@@ -11,6 +11,10 @@ iD.actions.DeleteWay = function(wayId) {
         way.nodes.forEach(function (nodeId) {
             var node = graph.entity(nodeId);
 
+            // Circular ways include nodes more than once, so they
+            // can be deleted on earlier iterations of this loop.
+            if (!node) return;
+
             graph = iD.actions.RemoveWayNode(wayId, nodeId)(graph);
 
             if (!graph.parentWays(nodeId).length && !graph.parentRelations(nodeId).length) {