+ @key.each_value do |layer_data|
+ layer_data.each do |entry|
+ entry["name"] = Array(entry["name"])
+ end
+ layer_data.each_cons(2) do |entry, next_entry|
+ entry["max_zoom"] = next_entry["min_zoom"] - 1 if entry["name"] == next_entry["name"] && !entry["max_zoom"] && next_entry["min_zoom"]
+ end
+ end