misc: always set selected attribute on menu items (#29150)

combo/public/menu.py

@@ -72,8 +72,7 @@ def get_menu_context(context, level=0, current_page=None, depth=1):
             if not element.is_visible(context['request'].user):
                 continue
         menuitem = {'page': element}
-        if element == page_of_level:
-            menuitem['selected'] = True
+        menuitem['selected'] = bool(element == page_of_level)
         menuitems.append(menuitem)
     context['menuitems'] = menuitems
     return context