Element duplication is gone, and element expansion does work as intended.

Thanks Vibe+qwen3.6.

Author: EXT-Gweltaz

src/FlaUInspect/ViewModels/ProcessViewModel.cs

@@ -1,19 +1,19 @@
-using System.Collections.ObjectModel;
-using System.Drawing.Imaging;
-using System.Runtime.CompilerServices;
-using System.Windows;
-using System.Windows.Input;
-using FlaUI.Core;
-using FlaUI.Core.AutomationElements;
-using FlaUI.Core.Identifiers;
-using FlaUInspect.Core;
-using FlaUInspect.Core.Exporters;
-using FlaUInspect.Core.Logger;
-using FlaUInspect.Models;
-using Microsoft.Win32;
-
-namespace FlaUInspect.ViewModels;
-
+using System.Collections.ObjectModel;
+using System.Drawing.Imaging;
+using System.Runtime.CompilerServices;
+using System.Windows;
+using System.Windows.Input;
+using FlaUI.Core;
+using FlaUI.Core.AutomationElements;
+using FlaUI.Core.Identifiers;
+using FlaUInspect.Core;
+using FlaUInspect.Core.Exporters;
+using FlaUInspect.Core.Logger;
+using FlaUInspect.Models;
+using Microsoft.Win32;
+
+namespace FlaUInspect.ViewModels;
+
 public class ProcessViewModel : ObservableObject {
 
 	private readonly PatternItemsFactory _patternItemsFactory;
@@ -266,8 +266,7 @@ private Stack<AutomationElement> GetPathToRoot(AutomationElement? obj, bool forc
 			if (nextElementVm is null || (!forceExpand && nextElementVm.IsExpanded))
 				continue;
 
-			if (pathToRoot.Count != 0)
-				nextElementVm.IsExpanded = true;
+			nextElementVm.IsExpanded = true;
 
 			ExpandElement(nextElementVm);
 
@@ -343,7 +342,7 @@ private static void ExpandElement(ElementViewModel sender, ObservableCollection<
 		var children = sender.LoadChildren(1);
 
 		foreach (var child in children)
-			if (!elements.Contains(child))
+			if (!elements.Any(e => e.AutomationElement?.Equals(child.AutomationElement) == true))
 				try {
 					elements.Insert(++senderIndex, child);
 				}
@@ -380,5 +379,5 @@ private static bool IsDescendantOf(ElementViewModel? node, ElementViewModel? par
 		while (node is not null && node != parent);
 
 		return node is not null && node == parent;
-	}
+	}
 }