From f6786834723a8aff0d6161cda64625e950ac3880 Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Sun, 7 May 2017 15:39:46 +0200
Subject: [PATCH] Handle inserts before currently visible item.

If a virtualized list was scrolled and an item added before the first
visible item, then the list wasn't updated.
---
 src/Avalonia.Controls/Presenters/ItemVirtualizerSimple.cs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/Avalonia.Controls/Presenters/ItemVirtualizerSimple.cs b/src/Avalonia.Controls/Presenters/ItemVirtualizerSimple.cs
index 96190720ae..20602d5475 100644
--- a/src/Avalonia.Controls/Presenters/ItemVirtualizerSimple.cs
+++ b/src/Avalonia.Controls/Presenters/ItemVirtualizerSimple.cs
@@ -155,8 +155,7 @@ namespace Avalonia.Controls.Presenters
                     case NotifyCollectionChangedAction.Add:
                         CreateAndRemoveContainers();
 
-                        if (e.NewStartingIndex >= FirstIndex &&
-                            e.NewStartingIndex < NextIndex)
+                        if (e.NewStartingIndex < NextIndex)
                         {
                             RecycleContainers();
                         }