From 22605e52e9d15e9127f308d8e60a70abe38a4770 Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Thu, 29 Oct 2020 13:14:00 +0000
Subject: [PATCH] add fix for treeview navigation when SelectedItem is not in
 the tree.

---
 src/Avalonia.Controls/TreeView.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Avalonia.Controls/TreeView.cs b/src/Avalonia.Controls/TreeView.cs
index 558bcddfbe..f020280496 100644
--- a/src/Avalonia.Controls/TreeView.cs
+++ b/src/Avalonia.Controls/TreeView.cs
@@ -382,7 +382,7 @@ namespace Avalonia.Controls
                         ItemContainerGenerator.Index.ContainerFromItem(_selectedItem) :
                         ItemContainerGenerator.ContainerFromIndex(0);
                     
-                    return (true, result); // SelectedItem may not be in the treeview.
+                    return (result is {}, result); // SelectedItem may not be in the treeview.
                 }
 
                 return (true, null);