FirePhp displays wrong context

...
        $this->setShared('log', function ()
        {
            $logger = new \Phalcon\Logger\Multiple();
            $logger->push(new \Phalcon\Logger\Adapter\File(LOG_PATH));
            $logger->push(new \Phalcon\Logger\Adapter\Firephp());
            return $logger;
        });

...
catch (\Exception $e)
{
    $trace = $e->getTrace(); // correct trace with multiple items
    $app->log->critical("Caught Exception: " . $e->getMessage(), $trace);
}

causes

{
...
   "backtrace":[
      {
         "function":"format",
         "class":"Phalcon\\Logger\\Formatter\\Firephp",
         "type":"->"
      },
      {
         "function":"logInternal",
         "class":"Phalcon\\Logger\\Adapter\\Firephp",
         "type":"->"
      },
      {
         "function":"log",
         "class":"Phalcon\\Logger\\Adapter",
         "type":"->"
      },
      {
         "function":"log",
         "class":"Phalcon\\Logger\\Multiple",
         "type":"->"
      },
      {
         "file":"\/home\/user\/www\/index.php",
         "line":60,
         "function":"critical",
         "class":"Phalcon\\Logger\\Multiple",
         "type":"->"
      }
   ]
....

in browser headers instead of correct exception trace. Exception message displayed as expected.