From 0e0b6f57420fda47fd8984f0ea035633e3d95feb Mon Sep 17 00:00:00 2001
From: yotamberk <yotamberk@gmail.com>
Date: Sun, 30 Oct 2016 09:59:40 +0200
Subject: [PATCH] Fixes background items with no groups (#2241)

---
 lib/timeline/component/Group.js | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/timeline/component/Group.js b/lib/timeline/component/Group.js
index 691d24b1..042b477a 100644
--- a/lib/timeline/component/Group.js
+++ b/lib/timeline/component/Group.js
@@ -502,8 +502,7 @@ Group.prototype.order = function() {
 Group.prototype._updateVisibleItems = function(orderedItems, oldVisibleItems, range) {
   var visibleItems = [];
   var visibleItemsLookup = {}; // we keep this to quickly look up if an item already exists in the list without using indexOf on visibleItems
-   
-  if (!this.isVisible) {
+  if (!this.isVisible && this.groupId != "__background__") {
     for (var i = 0; i < oldVisibleItems.length; i++) {
       var item = oldVisibleItems[i];
       if (item.displayed) item.hide();
@@ -557,7 +556,6 @@ Group.prototype._updateVisibleItems = function(orderedItems, oldVisibleItems, ra
     });
   }
 
-
   // finally, we reposition all the visible items.
   for (var i = 0; i < visibleItems.length; i++) {
     var item = visibleItems[i];