There is following proposition in map [documentation](https://github.com/red/docs/blob/master/en/datatypes/map.adoc): >Trying to access a key not defined in a map will: >* produce an error if the path syntax is used. >* return a none value if select is used. No error is produced in either case, only `none` is returned. Correct would be something like: "Trying to access a key not defined in a map will return a `none` value."