Crash in editor

[webmaster442]

Repro steps:

1. Select save file
2. Click on editor
3. In inventory (any, doesn't matter which one) on an empty spot open context menu
4. In context menu chose add/replace item
5. Select new item dialog opens.
6. Don't type anything into the search textbox and click on the magnifying glass icon, which performs the search.

Result: System.NullReferenceException

Stack trace:

   at: NomNom.ViewModel.ItemAddViewModel.IsItemInCategory(Item item) hely: C:\Users\cenge\source\repos\NomNom\NomNom\ViewModel\ItemAddViewModel.cs, line: 262
   at: System.Linq.Enumerable.<>c__DisplayClass6_0`1.<CombinePredicates>b__0(TSource x)
   at: System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
   at: System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at: System.Linq.OrderedEnumerable`1.<GetEnumerator>d__1.MoveNext()
   at: MoreLinq.MoreEnumerable.ForEach[T](IEnumerable`1 source, Action`1 action) hely: C:\projects\morelinq\MoreLinq\ForEach.cs, line: 37
   at: System.Windows.Input.CommandBinding.OnExecuted(Object sender, ExecutedRoutedEventArgs e)
   at: System.Windows.Input.CommandManager.ExecuteCommandBinding(Object sender, ExecutedRoutedEventArgs e, CommandBinding commandBinding)
   at: System.Windows.Input.CommandManager.FindCommandBinding(CommandBindingCollection commandBindings, Object sender, RoutedEventArgs e, ICommand command, Boolean execute)
   at: System.Windows.Input.CommandManager.FindCommandBinding(Object sender, RoutedEventArgs e, ICommand command, Boolean execute)
   at: System.Windows.Input.CommandManager.OnExecuted(Object sender, ExecutedRoutedEventArgs e)
   at: System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at: System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at: System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at: System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at: System.Windows.Input.RoutedCommand.ExecuteImpl(Object parameter, IInputElement target, Boolean userInitiated)
   at: MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(ICommandSource commandSource, Boolean userInitiated)
   at: System.Windows.Controls.Primitives.ButtonBase.OnClick()
   at: System.Windows.Controls.Button.OnClick()
   at: System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)
   at: System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at: System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at: System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at: System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
   at: System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e)
   at: System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at: System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at: System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at: System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at: System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
   at: System.Windows.Input.InputManager.ProcessStagingArea()
   at: System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   at: System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
   at: System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
   at: System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at: System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at: MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at: MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   at: System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at: System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

[cengelha]

Thanks! Fixed in the next version.