[Android] Adjust TextBlock.TextDecorations is not updating properly

doc/ReleaseNotes/_ReleaseNotes.md

@@ -58,6 +58,7 @@
 - [#1956] Fis iOS invalid final state when switching visual state before current state's animation is completed.
 - Fix `Selector` support for IsSelected (#1606)
 - [Android] 164249 fixed TextBox.Text flickering when using custom IInputFilter with MaxLength set
+- [Android] Adjust `TextBlock.TextDecorations` is not updating properly
 
 ## Release 2.0
 

src/Uno.UI/UI/Xaml/Controls/TextBlock/TextBlock.Android.cs

@@ -134,6 +134,7 @@ namespace Windows.UI.Xaml.Controls
 		partial void OnFontSizeChangedPartial() => _paint = null;
 		partial void OnCharacterSpacingChangedPartial() => _paint = null;
 		partial void OnForegroundChangedPartial() => _paint = null;
+		partial void OnTextDecorationsChangedPartial() => _paint = null;
 
 		// Invalidate _ellipsize
 		partial void OnTextTrimmingChangedPartial() => _ellipsize = null;
@@ -141,6 +142,7 @@ namespace Windows.UI.Xaml.Controls
 		// Invalidate _layoutAlignment
 		partial void OnTextAlignmentChangedPartial() => _layoutAlignment = null;
 
+
 		#endregion
 
 		#region Update