fix: failing gtk test

src/Uno.UI.RuntimeTests/Tests/Windows_UI_Xaml_Controls/Given_ListView.cs

@@ -31,6 +31,8 @@ public async Task When_ItemClicked_SelectsCorrectIndex()
 			TestServices.WindowHelper.WindowContent = listViewBase;
 			await TestServices.WindowHelper.WaitForLoaded(listViewBase);
 
+			loggingSelectionInfo.SafeMoveCurrentToPosition(0);
+
 			// We don't use ActualWidth because of https://github.com/unoplatform/uno/issues/15982
 			var tapTarget = listViewBase.TransformToVisual(null).TransformPoint(new Point(112 * 0.9, listViewBase.ActualHeight / 2));
 			var injector = InputInjector.TryCreate() ?? throw new InvalidOperationException("Failed to init the InputInjector");

src/Uno.UI.RuntimeTests/Tests/Windows_UI_Xaml_Controls/LoggingSelectionInfo.cs

@@ -90,6 +90,11 @@ public void SafeMoveCurrentTo(object item)
 
 	public void SafeMoveCurrentToPosition(int index)
 	{
+		if (index == -1)
+		{
+			MethodLog.Add("MoveCurrentToPosition() - Skipped due to invalid index (-1)");
+			return;
+		}
 		if (IsUsingISelectionInfo)
 		{
 			MethodLog.Add("MoveCurrentToPosition() - Skipped due to ISelectionInfo usage");

src/Uno.UI/UI/Xaml/Controls/ListViewBase/ListViewBase.cs

@@ -609,7 +609,7 @@ internal override void OnItemClicked(int clickedIndex, VirtualKeyModifiers modif
 
 			void SingleSelectionCase()
 			{
-
+				//Verifying if the ItemsSource is a CollectionView and not ISelectionInfo
 				if (ItemsSource is ICollectionView collectionView and not ISelectionInfo)
 				{
 					//NOTE: Windows seems to call MoveCurrentTo(item); we set position instead to have expected behavior when you have duplicate items in the list.