Space and plus sign sent in POST (is it really a 1.7.1 bug?) about prototype HOT 2 CLOSED

serializeElements: function(elements, options){
    if(typeof options != 'object') options = { hash: !!options };
    else
        if(Object.isUndefined(options.hash)) options.hash = true;
    var key, value, submitted = false, submit = options.submit, accumulator, initial;

    if(options.hash){
        initial = {};
        accumulator = function(result, key, value){
            if(key in result){
                if(!Object.isArray(result[key])) result[key] = [result[key]];
                result[key].push(value);
            }else result[key] = value;
            return result;
        };
    }else{
        initial = '';
        accumulator = function(result, key, value){
            value = value.gsub(/(\r)?\n/, '\r\n');
            value = encodeURIComponent(value);
            //value = value.gsub(/%20/, '+'); *
            //BJR - 43987 - Client Dashboard - Change Name Adds "+" Signs
            return result + (result ? '&' : '') + encodeURIComponent(key) + '=' + value;
        }
    }