From 4cacc0e339e929127caaa517f7103b0e3c20f862 Mon Sep 17 00:00:00 2001
From: Lauren Budorick <lauren@mapbox.com>
Date: Tue, 22 Nov 2016 15:06:20 -0500
Subject: [PATCH] Fix race condition causing SymbolBucket isEmpty errors

---
 js/data/bucket/symbol_bucket.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/js/data/bucket/symbol_bucket.js b/js/data/bucket/symbol_bucket.js
index b96925198cd..04e775a6303 100644
--- a/js/data/bucket/symbol_bucket.js
+++ b/js/data/bucket/symbol_bucket.js
@@ -182,9 +182,10 @@ class SymbolBucket {
     }
 
     isEmpty() {
-        return this.arrays.icon.isEmpty() &&
+        return !this.arrays || (
+            this.arrays.icon.isEmpty() &&
             this.arrays.glyph.isEmpty() &&
-            this.arrays.collisionBox.isEmpty();
+            this.arrays.collisionBox.isEmpty());
     }
 
     serialize(transferables) {