Fixing focus typo

Author: StanleyGoldman

src/UnityExtension/Assets/Editor/GitHub.Unity/UI/TreeControl.cs

@@ -210,9 +210,10 @@ public void Focus()
             {
                 int directionY = Event.current.keyCode == KeyCode.UpArrow ? -1 : Event.current.keyCode == KeyCode.DownArrow ? 1 : 0;
                 int directionX = Event.current.keyCode == KeyCode.LeftArrow ? -1 : Event.current.keyCode == KeyCode.RightArrow ? 1 : 0;
+
                 if (directionY != 0 || directionX != 0)
                 {
-                    if (directionY < 0 || directionY < 0)
+                    if (directionY < 0 || directionX < 0)
                     {
                         SelectedNode = nodes[nodes.Count - 1];
                         selectionChanged = true;