From 6311b913e19e8d47ca2f576f66601201d867a6df Mon Sep 17 00:00:00 2001
From: Nikita Tsukanov <keks9n@gmail.com>
Date: Sat, 2 May 2020 20:09:52 +0300
Subject: [PATCH] Second ctor

---
 src/Avalonia.Visuals/Rendering/DeferredRenderer.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Avalonia.Visuals/Rendering/DeferredRenderer.cs b/src/Avalonia.Visuals/Rendering/DeferredRenderer.cs
index ccb889ece9..0e6dda1710 100644
--- a/src/Avalonia.Visuals/Rendering/DeferredRenderer.cs
+++ b/src/Avalonia.Visuals/Rendering/DeferredRenderer.cs
@@ -75,7 +75,7 @@ namespace Avalonia.Rendering
         public DeferredRenderer(
             IVisual root,
             IRenderTarget renderTarget,
-            ISceneBuilder sceneBuilder = null)
+            ISceneBuilder sceneBuilder = null) : base(true)
         {
             Contract.Requires<ArgumentNullException>(root != null);
             Contract.Requires<ArgumentNullException>(renderTarget != null);
@@ -85,6 +85,7 @@ namespace Avalonia.Rendering
             _sceneBuilder = sceneBuilder ?? new SceneBuilder();
             Layers = new RenderLayers();
             _lock = new ManagedDeferredRendererLock();
+            _updateSceneIfNeededDelegate = UpdateSceneIfNeeded;
         }
 
         /// <inheritdoc/>