Answered FormIt placeholders are empty

[[!FormIt? 
&hooks=`email,redirect` 
&emailTpl=`contactus.tpl` 
&emailFrom=`[email protected]` 
&emailFromName=`domain.org.uk Customer Enquiry`
&emailTo=`[email protected],[[+addressTo]]` 
&emailSubject=`domain.org.uk Customer Enquiry` 
&emailReplyTo=`[[+email]]`
&validate=`name:required,
      email:email:required,
      message:required:stripTags,
      tel:isNumber`
&validationErrorMessage=`Please review the form for the following errors: [[+errors]]` 
&submitVar=`contact-form`
&redirectTo=`29` 
]]

<option value="[email protected]" [[!+fi.addressTo:FormItIsSelected=`[email protected]`]]>option 1</option>

&emailTo=`[email protected],[[+addressTo]]`
// if [[+addressTo]] has no content elsewhere on the page, it will always be empty

[[!FormIt?
   &emailTo=`[[+addressTo]]`
]]
...
<select name="addressTo">
   <option value="[email protected]" [[!+fi.addressTo:FormItIsSelected=`[email protected]`]]>Admin Pro</option>
   <option value="[email protected]" [[!+fi.addressTo:FormItIsSelected=`[email protected]`]]>Huncho Head</option>
</select>

[[+errors]]

Please review the form for the following errors: [[!+fi.error_message]]

[[!+fi.error.name]]

 [2014-02-28 16:45:05] (ERROR @ /home/sites/domain.org.uk/public_html/core/cache/includes/elements/modsnippet/5.include.cache.php : 39) PHP warning: in_array() expects parameter 2 to be array, string given
[2014-02-28 16:45:05] (ERROR @ /home/sites/domain.org.uk/public_html/core/cache/includes/elements/modsnippet/5.include.cache.php : 39) PHP warning: in_array() expects parameter 2 to be array, string given
[2014-02-28 16:45:08] (ERROR @ /home/sites/domain.org.uk/public_html/core/cache/includes/elements/modsnippet/5.include.cache.php : 39) PHP warning: in_array() expects parameter 2 to be array, null given
[2014-02-28 16:45:08] (ERROR @ /home/sites/domain.org.uk/public_html/core/cache/includes/elements/modsnippet/5.include.cache.php : 39) PHP warning: in_array() expects parameter 2 to be array, null given

<?php
function elements_modsnippet_5($scriptProperties= array()) {
global $modx;
if (is_array($scriptProperties)) {
extract($scriptProperties, EXTR_SKIP);
}
/**
 * FormIt
 *
 * Copyright 2009-2012 by Shaun McCormick <[email protected]>
 *
 * FormIt is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option) any
 * later version.
 *
 * FormIt is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * FormIt; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
 * Suite 330, Boston, MA 02111-1307 USA
 *
 * @package formit
 */
/**
 * Custom output filter that returns checked="checked" if the value is set
 *
 * @var string $input
 * @var string $options
 * @package formit
 */
$output = ' ';
if ($input == $options) {
    $output = ' selected="selected"';
}
$input = $modx->fromJSON($input);
if (in_array($options,$input)) {
  $output = ' selected="selected"';
}
return $output;
}

value="[[+addressTo]]"

<form action="[[~[[*id]]]]" method="post">
    <fieldset>
        <select name="addressTo" required="">
            <option value="" disabled selected>Subject of Enquiry</option>
            <option value="[email protected]" [[!+fi.addressTo:FormItIsSelected=`[email protected]`]]>1</option>
            <option value="[email protected]" [[!+fi.addressTo:FormItIsSelected=`[email protected]`]]>2</option>
        </select>
        <label for="name" >Your Name</label>
        <input id="name" name="name" value="[[!+fi.name]]" placeholder="Your Name"><span class="error">[[!+fi.error.name]]</span>
        <label for="email" >Your Email</label>
        <input id="email" name="email" type="email" value="[[!+fi.email]]" placeholder="Your Email Address"><span class="error">[[!+fi.error.email]]</span>
        <label for="tel" >Your Phone Number</label>
        <input id="tel" name="tel" type="tel" value="[[!+fi.tel]]" placeholder="Your Phone Number"><span class="error">[[!+fi.error.tel]]</span>
        <label for="message" >Your Message</label>
        <textarea id="message" name="message" type="text" value="[[!+fi.message]]" maxlength="500" title="" placeholder="Your Message"></textarea><span class="error">[[!+fi.error.message]]</span>
        <input name="contact-form" type="submit" value="Send">
    </fieldset>
</form>