lib/grumlin/traversal_start.rb in grumlin-0.18.1 vs lib/grumlin/traversal_start.rb in grumlin-0.19.0

@@ -29,10 +29,10 @@
 
       super
     end
 
     def __
-      TraversalStart.new(@shortcuts) # TODO: allow only regular and start steps
+      @__ ||= TraversalStart.new(@shortcuts) # TODO: allow only regular and start steps
     end
 
     def to_s(*)
       self.class.to_s
     end