Multi Item Region listing as Item 1, Item 1, Item 1

A small bug where multi items are listed as

• Item 1
• Item 1
• Item 1

Should of course be

• Item 1
• Item 2
• Item 3

This happens when the user does not enter into one of the fields specified in the 'Item list columns' in region options.

Health check

 Perch Runway is up to date
 PHP 5.6.28 is up to date
 MySQL 5.6.34 is up to date
 Image processing available
Summary information

Perch Runway: 3.0.10, PHP: 5.6.28, MySQL: mysqlnd 5.0.11-dev - 20120503 - $Id: 76b08b24596e12d4553bd41fc93cccd5bac2fe7a $, with PDO
Server OS: Darwin, cgi-fcgi
Installed apps: content (3.0.10), assets (3.0.10), categories (3.0.10)
App runtimes: <?php $apps_list = [ ];
PERCH_LOGINPATH: /perch
PERCH_PATH: /Users/simonclay/Dropbox/Clients/Lighthouse/Lighthouse Website/perch
PERCH_CORE: /Users/simonclay/Dropbox/Clients/Lighthouse/Lighthouse Website/perch/core
PERCH_RESFILEPATH: /Users/simonclay/Dropbox/Clients/Lighthouse/Lighthouse Website/perch/resources
Image manipulation: GD
PHP limits: Max upload 32M, Max POST 32M, Memory: 128M, Total max file upload: 32M
F1: 3b606135b33e6a102526838f4152a807
Resource folder writeable: Yes
SCRIPT_NAME: /perch/core/settings/diagnostics/index.php
REQUEST_URI: /perch/core/settings/diagnostics/
DOCUMENT_ROOT: /Users/simonclay/Dropbox/Clients/Lighthouse/Lighthouse Website
HTTP_HOST: lighthouse:8888