Having something to do in my kernel->boot() method I noticed this behaviour: the method is called twice when running a command.
https://github.com/symfony/framework-bundle/blob/master/Console/Application.php#L65
https://github.com/symfony/framework-bundle/blob/master/Console/Application.php#L161

Is there a reason?

My Kernel.php boot method ends up like this, to avoid double booting stuff

    public function boot()
    {
        if (!$this->booted) {
            [...]
        }
        parent::boot();
    }