use_recall_for

# File actionpack/lib/action_dispatch/routing/route_set.rb, line 332
        def use_recall_for(key)
          if @recall[key] && (!@options.key?(key) || @options[key] == @recall[key])
            if named_route_exists?
              @options[key] = @recall.delete(key) if segment_keys.include?(key)
            else
              @options[key] = @recall.delete(key)
            end
          end
        end