Fixed FocusUIAction that did not update the focus of a button in certain conditions

CHANGELOG.md

 * Renamed HierarchyHints to AdvancedHierarchyView + Changed behaviour to apply visibility from preferences
 * Managers: Adjusted RuntimeInitializeOnLoad for new Quick Enter Play Mode Settings
 
+#### Fixed
+
+* Fixed FocusUIAction that did not update the focus of a button in certain conditions.
+
 ## 2019.3.3
 
 #### Added

Runtime/LevelScripting/Actions/FocusUIAction.cs

         {
             if (UIObjectToFocus != null)
             {
+                // Workaround : Before selecting, we ensure that there's no selection in the EventSystem
+                Manager.Get<UIEventManager>().eventSystem.SetSelectedGameObject(null);
                 UIObjectToFocus.Select();
             }
         }