delete selection when committext has null text

src/Android/Avalonia.Android/Platform/SkiaPlatform/TopLevelImpl.cs

@@ -575,10 +575,11 @@ namespace Avalonia.Android.Platform.SkiaPlatform
 
             var committedText = text.SubSequence(0, text.Length());
 
-            if (_inputMethod.IsActive && !string.IsNullOrEmpty(committedText))
+            if (_inputMethod.IsActive)
-            {
+                if (string.IsNullOrEmpty(committedText))
-                _toplevel.TextInput(committedText);
+                    _inputMethod.View.DispatchKeyEvent(new KeyEvent(KeyEventActions.Down, Keycode.ForwardDel));
-            }
+                else
+                    _toplevel.TextInput(committedText);
 
             _commitInProgress = false;
             EndBatchEdit();