From 6de76dd7f21d6d719629ba5fc8d1f04339258cac Mon Sep 17 00:00:00 2001
From: Compunet <117437050+dme-compunet@users.noreply.github.com>
Date: Tue, 3 Jun 2025 19:10:23 +0300
Subject: [PATCH] fix: ensure proper StringBuilderCache release (#18985)

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

diff --git a/src/Avalonia.Controls/TextBox.cs b/src/Avalonia.Controls/TextBox.cs
index 7cbf442d88..a5728d44ea 100644
--- a/src/Avalonia.Controls/TextBox.cs
+++ b/src/Avalonia.Controls/TextBox.cs
@@ -2183,7 +2183,7 @@ namespace Avalonia.Controls
                 textBuilder.Append(text);
                 textBuilder.Remove(start, end - start);
 
-                SetCurrentValue(TextProperty, textBuilder.ToString());
+                SetCurrentValue(TextProperty, StringBuilderCache.GetStringAndRelease(textBuilder));
 
                 _presenter?.MoveCaretToTextPosition(start);