From f92804ff05b6361a0e355ad894e59c453927c6c7 Mon Sep 17 00:00:00 2001
From: Deadpikle <mbabienco@southern.edu>
Date: Tue, 8 Jun 2021 18:57:18 -0400
Subject: [PATCH] Improve UndoRedoState.Equals(object obj) impl

---
 src/Avalonia.Controls/TextBox.cs | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/src/Avalonia.Controls/TextBox.cs b/src/Avalonia.Controls/TextBox.cs
index edd268a86a..b89bd22038 100644
--- a/src/Avalonia.Controls/TextBox.cs
+++ b/src/Avalonia.Controls/TextBox.cs
@@ -158,12 +158,9 @@ namespace Avalonia.Controls
 
             public bool Equals(UndoRedoState other) => ReferenceEquals(Text, other.Text) || Equals(Text, other.Text);
 
-            public override bool Equals(object obj)
-            {
-                if (ReferenceEquals(null, obj)) return false;
-                if (obj.GetType() != GetType()) return false;
-                return Equals((UndoRedoState)obj);
-            }
+            public override bool Equals(object obj) => obj is UndoRedoState other && Equals(other);
+
+            public override int GetHashCode() => Text.GetHashCode();
         }
 
         private string _text;