[TIMOB-19896] iOS: Ti.Contacts.getAllPeople() | Custom fields for phone, address and email returns undefined

var win = Ti.UI.createWindow({
	backgroundColor: '#fff',
});

var performAddressBookFunction = function() {
	var singleValue = ['firstName', 'lastName', 'fullName'];
	var multiValue = ['email', 'address', 'phone'];
	var people = Ti.Contacts.getAllPeople();
	Ti.API.info('Total contacts: ' + people.length);
	for (var i = 0,
	    ilen = people.length; i < ilen; i ++) {
		Ti.API.info('---------------------');
		var person = people[i];
		for (var j = 0, jlen = singleValue.length; j < jlen; j ++) {
			Ti.API.info(singleValue[j] + ': ' + person[singleValue[j]]);
		}
		for (var j = 0, jlen = multiValue.length; j < jlen; j ++) {
			Ti.API.info(multiValue[j] + ': ' + JSON.stringify(person[multiValue[j]]));
		}
	}

};

var addressBookDisallowed = function() {
	alert('Hey! You disallowed this, why?');
};

var button = Ti.UI.createButton({
	title: 'Output contacts to console',
	height: 50
});
win.add(button);

button.addEventListener('click', function() {
	Ti.Contacts.requestAuthorization(function(e) {
		if (e.success){
			performAddressBookFunction();
		} else {
			addressBookDisallowed();
		}
	});
});

win.open();