From cce270022496cf26715216492384916ea38fc9b2 Mon Sep 17 00:00:00 2001
From: Brendan Dahl <brendan.dahl@gmail.com>
Date: Thu, 4 Dec 2014 11:45:35 -0800
Subject: [PATCH] Skip setting undefined values.

---
 midp/midp.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/midp/midp.js b/midp/midp.js
index 8c558cf7..776260d3 100644
--- a/midp/midp.js
+++ b/midp/midp.js
@@ -858,6 +858,9 @@ MIDP.copyEvent = function(obj, isolateId) {
     var e = MIDP.nativeEventQueues[isolateId].shift();
     obj.klass.classInfo.getField("I.type.I").set(obj, e.type);
     obj.klass.classInfo.fields.forEach(function(field) {
+        if (e[field.name] === undefined) {
+          return;
+        }
         field.set(obj, e[field.name]);
     });
 }