From 6f152530d649cd6dcacecfc7e88a94e98028f911 Mon Sep 17 00:00:00 2001
From: Ben Gotow <bengotow@gmail.com>
Date: Wed, 9 Sep 2015 15:27:42 -0700
Subject: [PATCH] fix(message-toolbar): Handle scenario where toolbar items
 rapidly removed (Sentry 2861)

---
 internal_packages/message-list/lib/message-toolbar-items.cjsx | 1 +
 1 file changed, 1 insertion(+)

diff --git a/internal_packages/message-list/lib/message-toolbar-items.cjsx b/internal_packages/message-list/lib/message-toolbar-items.cjsx
index 40248c300..b95ba5ca2 100644
--- a/internal_packages/message-list/lib/message-toolbar-items.cjsx
+++ b/internal_packages/message-list/lib/message-toolbar-items.cjsx
@@ -33,6 +33,7 @@ class MessageToolbarItems extends React.Component
     @_unsubscribers.push FocusedContentStore.listen @_onChange
 
   componentWillUnmount: =>
+    return unless @_unsubscribers
     unsubscribe() for unsubscribe in @_unsubscribers
 
   _onChange: =>