Log wrong flush order

[Vitaliy D]

Monolog version 2

Have 2 channels for writing same file, make info and debug records but flushed wrong sequence.
What i'm doing wrong?

Should be:

Child.DEBUG: START UPDATE PROCESS [] []
Primary.DEBUG: Call Action method. []
Child.INFO: END PROCESS [] []

Writed to file:

Primary.DEBUG: Call Action method. []
Child.DEBUG: START UPDATE PROCESS [] []
Child.INFO: END PROCESS [] []

Base class

abstract class Primary 
{
  protected $baseLogger;
  function __construct()
    {
        $this->InitLog();
    }
  function InitLog() {
    $stream = new StreamHandler($_SERVER["DOCUMENT_ROOT"] . "/logs/app.log", Logger::DEBUG);
    $firephp = new FirePHPHandler();
    $this->baseLogger = new Logger('BaseChannel');
    $this->baseLogger->pushHandler($stream);
    $this->baseLogger->pushHandler($firephp);
  }
  protected function doAction() 
  {
     $this->baseLogger->debug("Call Action method.");
  }
}

Extended class

class Child extends Primary 
{
   var $logger;
   public function __construct()
    {
        parent::__construct();
        $channelName = (new \ReflectionClass($this))->getShortName();
        $this->logger = $this->baseLogger->withName($channelName);
    }
  public function Process() 
  {
        $this->logger->info("START UPDATE PROCESS");
        ...
        $this->doAction();
        ...
        $this->logger->info("END UPDATE PROCESS");
  }
}

Call:

$c = new Child();
$c->Process();