unselect the previous grouped image selection if another group is selected

Author: LeftofZen

Gui/ViewModels/Graphics/ImageTableViewModel.cs

@@ -196,7 +196,16 @@ void AnimationTimer_Tick(object? sender, EventArgs e)
 
 	void SelectionChanged(object sender, SelectionModelSelectionChangedEventArgs e)
 	{
+		// need to unselect the current selection
 		var sm = (SelectionModel<ImageViewModel>)sender;
+		if (SelectionModel != null && SelectionModel != sm)
+		{
+			SelectionModel.SelectionChanged -= SelectionChanged;
+			SelectionModel.Clear();
+			SelectionModel.SelectionChanged += SelectionChanged;
+		}
+
+		// set main selection to the new viewmodel selection
 		SelectionModel = sm;
 		SelectedImage = SelectionModel.SelectedItems.Count > 0 ? sm.SelectedItems[0] : null;
 	}

Gui/ViewModels/Graphics/ImageViewModel.cs

@@ -17,14 +17,19 @@ namespace Gui.ViewModels.Graphics;
 
 public class ImageViewModel : ReactiveUI.ReactiveObject
 {
-	public string Name => Model.Name;
-	public int ImageTableIndex => Model.ImageTableIndex;
+	public string Name
+		=> Model.Name;
+
+	public int ImageTableIndex
+		=> Model.ImageTableIndex;
 
 	[Unit("px")]
-	public int Width => UnderlyingImage.Width;
+	public int Width
+		=> UnderlyingImage.Width;
 
 	[Unit("px")]
-	public int Height => UnderlyingImage.Height;
+	public int Height
+		=> UnderlyingImage.Height;
 
 	[Unit("px")]
 	public short XOffset