@summary{
    Leave the current map and load the next according to the map progression of the current episode.
}
@description{
    @usage
    @ident{leavemap} @help_optionalarg{exit}
    
    If @help_arg{exit} is specified, an exit by this name will be searched
    for in the defined map progression for the current episode, rather than
    the default exit; "next".  
}
