From f416413b7e950348edb940b0dc33e413e81e7620 Mon Sep 17 00:00:00 2001
From: Nolan Lawson <nolan@nolanlawson.com>
Date: Wed, 17 Jan 2018 19:52:18 -0800
Subject: [PATCH] fix batch update

---
 routes/_utils/virtualListStore.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/routes/_utils/virtualListStore.js b/routes/_utils/virtualListStore.js
index 8867457e..5538eedd 100644
--- a/routes/_utils/virtualListStore.js
+++ b/routes/_utils/virtualListStore.js
@@ -15,6 +15,10 @@ class VirtualListStore extends Store {
     batch[subKey] = value
 
     requestAnimationFrame(() => {
+      let batch = this._batches[key]
+      if (!batch) {
+        return
+      }
       let updatedKeys = Object.keys(batch)
       if (!updatedKeys.length) {
         return