From 458d8bf76031a95b1f46cabee185aabf1153963c Mon Sep 17 00:00:00 2001
From: Jeremy Koritzinsky <jkoritzinsky@gmail.com>
Date: Wed, 14 Feb 2018 15:55:31 -0600
Subject: [PATCH] Don't dispose replaced visual nodes if they're replaced with
 themselves.

---
 src/Avalonia.Visuals/Rendering/SceneGraph/VisualNode.cs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/Avalonia.Visuals/Rendering/SceneGraph/VisualNode.cs b/src/Avalonia.Visuals/Rendering/SceneGraph/VisualNode.cs
index 3cb7e53d21..427f819200 100644
--- a/src/Avalonia.Visuals/Rendering/SceneGraph/VisualNode.cs
+++ b/src/Avalonia.Visuals/Rendering/SceneGraph/VisualNode.cs
@@ -148,7 +148,10 @@ namespace Avalonia.Rendering.SceneGraph
             EnsureChildrenCreated();
             var old = _children[index];
             _children[index] = node;
-            old.Dispose();
+            if (node != old)
+            {
+                old.Dispose(); 
+            }
         }
 
         /// <summary>
@@ -329,7 +332,7 @@ namespace Avalonia.Rendering.SceneGraph
                 _drawOperationsCloned = false;
             }
         }
-
+        
         public void Dispose()
         {
             foreach (var child in Children)