Helper method to get full payload on AR events

[MrHash]

This kind of method would be helpful:

    public function getPayload()
    {
        $data = $this->data;
        foreach ($this->getEmbeddedEntityEvents() as $position => $embeddedEntityEvent) {
            $data[$embeddedEntityEvent->getParentAttributeName()][$position] = $embeddedEntityEvent->getData();
        }
        return $data;
    }

[MrHash]

Or getData() should return this