Potential ODM bug at Save/Update

Hello, i have form whitch on post I insert the data into Mongo, and then bring back the inserted data on the form(in case to edit) + id of document.If try to make edit on same form after first insert mongo save() return true, but the data stays the same and never goes updated. Controller :

public function editHotelAction($propertySupplierId, $sellingCode)
{

    $this->property_supplier_id = $propertySupplierId;
    $form = new EditHotelForm();
    if (empty($this->request->getPost('documentId'))) {
        $form->initialize(json_decode(json_encode($this->getExportedData())), $sellingCode);
    }

    if ($this->request->isPost()) {

        if (empty($this->request->getPost('documentId'))) {
            $hotelsModel = new Hotels();
        } else {
            $hotelsModel = Hotels::findById($this->request->getPost('documentId'));
        }

        $this->setCollections();

        $hotelsModel->setInfo($this->getCollection('infoCollection'))
            ->setBrochure($this->getCollection('brochureCollection'))
            ->setSupplier($this->getCollection('supplierCollection'))
            ->sellingCode = $this->request->getPost('sellingCode');

        if ($hotelsModel->save()) {
            //Load the Updated Hotel, not original content
            $form->initialize(json_decode(json_encode($hotelsModel)), $sellingCode);
            $this->flashSession->success('Successfully edit Hotel!');
            foreach ($hotelsModel->_id as $id) {
                $this->view->documentId = $id;
            }
        } else {
            $this->getErrors($hotelsModel);
        }
    }
    $this->view->form = $form;
}

Model :

namespace Modules\Agent\Models;

class Hotels extends \Phalcon\Mvc\Collection
{
/**
 * Collection
 * @var
 */
public $info;

/**
 * Collection
 * @var
 */
public $brochure;

/**
 * Collection
 * @var
 */
public $supplier;

public function getCollection()
{
    return $this->getConnection()->selectCollection('broadway_content');
}

/**
 * @return mixed
 */
public function getInfo()
{
    return $this->info;
}

/**
 * @param mixed $info
 */
public function setInfo(array $info)
{
    foreach ($info as $key => $value) {
        $this->info->$key = $value;
    }
    return $this;
}

/**
 * @return mixed
 */
public function getBrochure()
{
    return $this->brochure;
}

/**
 * @param mixed $brochure
 */
public function setBrochure(array $brochure)
{
    foreach ($brochure as $key => $value) {
        $this->brochure->$key = $value;
    }

    return $this;
}

/**
 * @return mixed
 */
public function getSupplier()
{
    return $this->supplier;
}

/**
 * @param mixed $supplier
 */
public function setSupplier(array $supplier)
{
    foreach ($supplier as $key => $value) {
        $this->supplier->$key = $value;
    }
    return $this;
}
}

View:

    <?php $this->partial('base/_messages') ?>
<div class="row">
<div class="col-sm-12">
    <form class="form-horizontal" role="form" method="POST">
        <div class="form-group">
            <label for="hotelName" class="col-sm-2 control-label">Hotel name</label>

            <div class="col-sm-4">
                <?php echo $form->render('hotelName'); ?>
            </div>
        </div>
        <div class="form-group">
            <label class="col-sm-2 control-label" for="countryName">Country name</label>

            <div class="col-sm-4">
                <?php echo $form->render('countryName'); ?>
            </div>
        </div>
        <div class="form-group">
            <label class="col-sm-2 control-label" for="countryCode">Country code</label>

            <div class="col-sm-4">
                <?php echo $form->render('countryCode'); ?>
            </div>
        </div>
        <div class="form-group">
            <label class="col-sm-2 control-label" for="resortName">Resort name</label>

            <div class="col-sm-4">
                <?php echo $form->render('resortName'); ?>
            </div>
        </div>
        <div class="form-group">
            <label class="col-sm-2 control-label" for="email">Email</label>

            <div class="col-sm-4">
                <?php echo $form->render('email'); ?>
            </div>
        </div>
        <div class="form-group">
            <label class="col-sm-2 control-label" for="phone">Phone</label>

            <div class="col-sm-4">
                <?php echo $form->render('phone'); ?>
            </div>
        </div>
        <div class="form-group">
            <label class="col-sm-2 control-label" for="rooms">Rooms</label>

            <div class="col-sm-4">
                <?php echo $form->render('rooms'); ?>
            </div>
        </div>
        <div class="form-group">
            <label class="col-sm-2 control-label" for="brochureName">Brochure name</label>

            <div class="col-sm-4">
                <?php echo $form->render('brochureName'); ?>
            </div>
        </div>
        <div class="form-group">
            <label class="col-sm-2 control-label" for="startDate">Start date</label>

            <div class="col-sm-4">
                <?php echo $form->render('startDate'); ?>
            </div>
        </div>
        <div class="form-group">
            <label class="col-sm-2 control-label" for="endDate">End date</label>

            <div class="col-sm-4">
                <?php echo $form->render('endDate'); ?>
            </div>
        </div>
        <div class="form-group">
            <label class="col-sm-2 control-label" for="supplierName">Supplier name</label>

            <div class="col-sm-4">
                <?php echo $form->render('supplierName'); ?>
            </div>
        </div>
        <div class="form-group">
            <label class="col-sm-2 control-label" for="supplierCode">Supplier code</label>

            <div class="col-sm-4">
                <?php echo $form->render('supplierCode'); ?>
            </div>
        </div>
        <div class="form-group" style="margin-left: 470px;">
            <?php echo $form->render('sellingCode');
            if ($documentId) { ?>
                <input type="hidden" value="<?php echo $documentId ?>" name="documentId">
            <?php } ?>
            <div class="col-sm-4">
                <button type="submit" class="btn btn-primary">Update</button>
            </div>
        </div>
    </form>
</div>

</div>