framework/base/ActionFilter.php
public function detach()
    {
        if ($this->owner) {
            $this->owner->off(Controller::EVENT_BEFORE_ACTION, [$this, 'beforeFilter']);
            $this->owner->off(Controller::EVENT_AFTER_ACTION, [$this, 'afterFilter']);
            $this->owner = null;
        }
    }
public function detach()
    {
        if ($this->owner) {
            $this->owner->off(Controller::EVENT_BEFORE_ACTION, [$this, 'beforeFilter']);
            $this->owner->off(Controller::EVENT_AFTER_ACTION, [$this, 'afterFilter']);
            $this->owner = null;
        }
    }
{@inheritdoc}