From 2ae07d3277ae5b55bc66831e8355ddba9873d4da Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Tue, 11 Jan 2022 15:24:19 +0100
Subject: [PATCH] Reduce the priority in AvaloniaSynchronizationContext.

`AvaloniaSynchronizationContext` was previously queuing continuations with `Send` priority, which is the maximum. This was causing the problem described in https://github.com/AvaloniaUI/Avalonia/issues/6930#issuecomment-1008888711. Decrease the priority so that continuations don't get called during `Window` construction on macOS.
---
 src/Avalonia.Base/Threading/AvaloniaSynchronizationContext.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Avalonia.Base/Threading/AvaloniaSynchronizationContext.cs b/src/Avalonia.Base/Threading/AvaloniaSynchronizationContext.cs
index b991f9eb40..21649306cb 100644
--- a/src/Avalonia.Base/Threading/AvaloniaSynchronizationContext.cs
+++ b/src/Avalonia.Base/Threading/AvaloniaSynchronizationContext.cs
@@ -30,7 +30,7 @@ namespace Avalonia.Threading
         /// <inheritdoc/>
         public override void Post(SendOrPostCallback d, object? state)
         {
-           Dispatcher.UIThread.Post(() => d(state), DispatcherPriority.Send);
+           Dispatcher.UIThread.Post(() => d(state), DispatcherPriority.Background);
         }
 
         /// <inheritdoc/>