Bug 595333 - Downloads started during DownloadView initialization are added twice [r=mfinkle]

mobile/chrome/content/downloads.js

@@ -73,7 +73,10 @@ var DownloadsView = {
   },
 
   _createItem: function dv__createItem(aAttrs) {
-    let item = document.createElement("richlistitem");
+    // Make sure this doesn't already exist
+    let item = this.getElementForDownload(aAttrs.id);
+    if (!item) {
+      item = document.createElement("richlistitem");
 
       // Copy the attributes from the argument into the item
       for (let attr in aAttrs)
@@ -89,7 +92,7 @@ var DownloadsView = {
       // Initialize more complex attributes
       this._updateTime(item);
       this._updateStatus(item);
-
+    }
     return item;
   },