Use correct var when returning updated certificate

src/backend/internal/audit-log.js

@@ -44,9 +44,9 @@ const internalAuditLog = {
      * @param   {Access}   access
      * @param   {Object}   data
      * @param   {String}   data.action
-     * @param   {Integer}  [data.user_id]
+     * @param   {Number}   [data.user_id]
-     * @param   {Integer}  [data.object_id]
+     * @param   {Number}   [data.object_id]
-     * @param   {Integer}  [data.object_type]
+     * @param   {Number}   [data.object_type]
      * @param   {Object}   [data.meta]
      * @returns {Promise}
      */

src/backend/internal/certificate.js

@@ -766,7 +766,7 @@ const internalCertificate = {
                                 meta:        updated_certificate
                             })
                                 .then(() => {
-                                    return certificate;
+                                    return updated_certificate;
                                 });
                         })
                 } else {