fix force array global issue

Author: dannyrscott

lib/xml2json.js

@@ -8,7 +8,6 @@ var obj = {};
 var currentObject = {};
 var ancestors = [];
 var currentElementName = null;
-var forceArrays = {};
 
 var options = {}; //configuration options
 function startElement(name, attrs) {
@@ -21,7 +20,7 @@ function startElement(name, attrs) {
     }
 
     if (! (name in currentObject)) {
-        if(options.arrayNotation || forceArrays[name]) {
+        if(options.arrayNotation || options.forceArrays[name]) {
             currentObject[name] = [attrs];
         } else {
             currentObject[name] = attrs;
@@ -153,9 +152,10 @@ module.exports = function(xml, _options) {
     var validation = joi.validate(_options, schema);
     hoek.assert(validation.error === null, validation.error);
     options = validation.value;
+    options.forceArrays = {};
     if (Array.isArray(options.arrayNotation)) {
         options.arrayNotation.forEach(function(i) {
-            forceArrays[i] = true;
+            options.forceArrays[i] = true;
         });
         options.arrayNotation = false;
     }