From e7fbe3154896fa984330b5b17059569cf34cf57f Mon Sep 17 00:00:00 2001
From: Hendy Racher <git@hendyracher.co.uk>
Date: Mon, 26 May 2014 21:45:11 +0100
Subject: [PATCH] fix to ensure empty json / xml collections return null

---
 .../Shared/SaveFormat/SaveFormatResource.js                   | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/source/nuComponents.DataTypes/Shared/SaveFormat/SaveFormatResource.js b/source/nuComponents.DataTypes/Shared/SaveFormat/SaveFormatResource.js
index 5470e46..e797e59 100644
--- a/source/nuComponents.DataTypes/Shared/SaveFormat/SaveFormatResource.js
+++ b/source/nuComponents.DataTypes/Shared/SaveFormat/SaveFormatResource.js
@@ -9,6 +9,10 @@ angular.module('umbraco.resources')
                 // returns a string representation of the picked options as per the configured SaveFormat
                 createSaveValue: function (config, pickedOptions) {
                     
+                    if (pickedOptions == null || pickedOptions.length == 0) {
+                        return null;
+                    }
+
                     switch (config.saveFormat) {
 
                         case 'csv': // "key, key..."