From cb8d4b40ce626918e9199a5f8aee1fcb95485019 Mon Sep 17 00:00:00 2001
From: Emmanuel Hansen <emmausssss@gmail.com>
Date: Thu, 7 Dec 2023 08:39:55 +0000
Subject: [PATCH] win32 - fix client size update when window is opened with
 extended client area (#13865)

---
 src/Windows/Avalonia.Win32/WindowImpl.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Windows/Avalonia.Win32/WindowImpl.cs b/src/Windows/Avalonia.Win32/WindowImpl.cs
index db2f5c6a5a..0c54f0fe6d 100644
--- a/src/Windows/Avalonia.Win32/WindowImpl.cs
+++ b/src/Windows/Avalonia.Win32/WindowImpl.cs
@@ -1348,7 +1348,7 @@ namespace Avalonia.Win32
             else
                 SetFullScreen(newProperties.IsFullScreen);
 
-            if (!_isFullScreenActive)
+            if (!_isFullScreenActive && ((oldProperties.Decorations != newProperties.Decorations) || forceChanges))
             {
                 var style = GetStyle();