From 2d7c8645d0e82ed71edce10472bb5d5b1360d1d2 Mon Sep 17 00:00:00 2001
From: Nikita Tsukanov <keks9n@gmail.com>
Date: Mon, 21 Nov 2022 01:14:43 +0600
Subject: [PATCH] Recalculate parent's child render nodes on visual tree
 attachment

---
 src/Avalonia.Base/Visual.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Avalonia.Base/Visual.cs b/src/Avalonia.Base/Visual.cs
index 69389def56..51fc143f72 100644
--- a/src/Avalonia.Base/Visual.cs
+++ b/src/Avalonia.Base/Visual.cs
@@ -432,6 +432,7 @@ namespace Avalonia
             OnAttachedToVisualTree(e);
             AttachedToVisualTree?.Invoke(this, e);
             InvalidateVisual();
+            _visualRoot.Renderer.RecalculateChildren(_visualParent!);
 
             if (ZIndex != 0 && this.GetVisualParent() is Visual parent)
                 parent.HasNonUniformZIndexChildren = true;