Ignore mouse move when left window (#13724)

src/Avalonia.Base/Input/PointerOverPreProcessor.cs

@@ -41,14 +41,16 @@ namespace Avalonia.Input
                     _lastActivePointerDevice = pointerDevice;
                 }
 
-                if (args.Type is RawPointerEventType.LeaveWindow or RawPointerEventType.NonClientLeftButtonDown 
+                if (args.Type is RawPointerEventType.LeaveWindow or RawPointerEventType.NonClientLeftButtonDown
-                    or RawPointerEventType.TouchCancel or RawPointerEventType.TouchEnd
+                    or RawPointerEventType.TouchCancel or RawPointerEventType.TouchEnd)
-                    && _currentPointer is var (lastPointer, lastPosition))
                 {
-                    _currentPointer = null;
+                    if (_currentPointer is var (lastPointer, lastPosition))
-                    ClearPointerOver(lastPointer, args.Root, 0, PointToClient(args.Root, lastPosition),
+                    {
-                        new PointerPointProperties(args.InputModifiers, args.Type.ToUpdateKind()),
+                        _currentPointer = null;
-                        args.InputModifiers.ToKeyModifiers());
+                        ClearPointerOver(lastPointer, args.Root, 0, PointToClient(args.Root, lastPosition),
+                            new PointerPointProperties(args.InputModifiers, args.Type.ToUpdateKind()),
+                            args.InputModifiers.ToKeyModifiers());
+                    }
                 }
                 else if (args.Type is RawPointerEventType.TouchBegin or RawPointerEventType.TouchUpdate && args.Root is Visual visual)
                 {