В /admin/model/catalog/product.php
foreach ($data['product_description'] as $language_id => $value) {
$value['name'] = htmlspecialchars_decode($value['name']);
$this->db->query("INSERT INTO " . DB_PREFIX . "product_description SET product_id = '" . (int)$product_id . "', language_id = '" . (int)$language_id . "', name = '" . $this->db->escape($value['name']) . "', meta_keyword = '" . $this->db->escape($value['meta_keyword']) . "', meta_description = '" . $this->db->escape($value['meta_description']) . "', description = '" . $this->db->escape($value['description']) . "', tag = '" . $this->db->escape($value['tag']) . "', seo_title = '" . $this->db->escape($value['seo_title']) . "', seo_h1 = '" . $this->db->escape($value['seo_h1']) . "'");
}
/admin/view/template/catalog/product_form.tpl
value="<?php echo (isset($product_description[$language['language_id']])) ? htmlspecialchars($product_description[$language['language_id']]['name']) : ''; ?>"