From 3a247bde2afc4cc7a31f525a95e3aaf3fd9aaa19 Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Wed, 2 Dec 2020 21:59:44 +0100
Subject: [PATCH] LayoutState should call LayoutStateCore.

See upstream implementation at https://github.com/microsoft/microsoft-ui-xaml/blob/c6c8d084231f8cc4ffa978305e9f2a0f93a9a39c/dev/Repeater/LayoutContext.cpp#L13-L18
---
 src/Avalonia.Layout/LayoutContext.cs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Avalonia.Layout/LayoutContext.cs b/src/Avalonia.Layout/LayoutContext.cs
index 45a8048ea2..dadce58c0c 100644
--- a/src/Avalonia.Layout/LayoutContext.cs
+++ b/src/Avalonia.Layout/LayoutContext.cs
@@ -14,7 +14,11 @@ namespace Avalonia.Layout
         /// <summary>
         /// Gets or sets an object that represents the state of a layout.
         /// </summary>
-        public object LayoutState { get; set; }
+        public object LayoutState 
+        {
+            get => LayoutStateCore;
+            set => LayoutStateCore = value;
+        }
 
         /// <summary>
         /// Implements the behavior of <see cref="LayoutState"/> in a derived or custom LayoutContext.