From 91279db308731453057205e6c54366304d67b1bb Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Wed, 11 Sep 2019 18:55:08 +0100
Subject: [PATCH] apply fix to reversible stackpanel.

---
 src/Avalonia.Controls/Notifications/ReversibleStackPanel.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Avalonia.Controls/Notifications/ReversibleStackPanel.cs b/src/Avalonia.Controls/Notifications/ReversibleStackPanel.cs
index 768d87c63e..9edf9848fd 100644
--- a/src/Avalonia.Controls/Notifications/ReversibleStackPanel.cs
+++ b/src/Avalonia.Controls/Notifications/ReversibleStackPanel.cs
@@ -39,6 +39,11 @@ namespace Avalonia.Controls
 
             foreach (Control child in children)
             {
+                if (!child.IsVisible)
+                {
+                    continue;
+                }
+
                 double childWidth = child.DesiredSize.Width;
                 double childHeight = child.DesiredSize.Height;