From acd2caf26c279111043ea554606d07cb795b705f Mon Sep 17 00:00:00 2001
From: Seth Alves <seth@highfidelity.io>
Date: Tue, 23 Feb 2016 16:35:20 -0800
Subject: [PATCH] handle case where user grab data didn't have a heartbeat

---
 examples/controllers/handControllerGrab.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/examples/controllers/handControllerGrab.js b/examples/controllers/handControllerGrab.js
index ad5f1c3775..7db4a0ee8b 100644
--- a/examples/controllers/handControllerGrab.js
+++ b/examples/controllers/handControllerGrab.js
@@ -1731,7 +1731,8 @@ function MyController(hand) {
                 };
                 Entities.editEntity(entityID, whileHeldProperties);
             } else if (data["refCount"] > 1) {
-                if (now - data["heartBeat"] > HEART_BEAT_TIMEOUT) {
+                if (data["heartBeat"] === undefined ||
+                    now - data["heartBeat"] > HEART_BEAT_TIMEOUT) {
                     // this entity has userData suggesting it is grabbed, but nobody is updating the hearbeat.
                     // deactivate it before grabbing.
                     this.resetAbandonedGrab(entityID);