TaskFieldHandler::prepareGroupId

public function prepareGroupId(): self
{
	if (
		!isset($this->fields['GROUP_ID'])
		&& !$this->taskId
	)
	{
		$this->fields['GROUP_ID'] = 0;
	}

	if (array_key_exists('GROUP_ID', $this->fields))
	{
		$this->fields['GROUP_ID'] = (int) $this->fields['GROUP_ID'];
	}

	if (
		$this->taskId
		&& isset($this->fields['GROUP_ID'])
		&& $this->fields['GROUP_ID']
		&& $this->fields['GROUP_ID'] !== (int) $this->taskData['GROUP_ID']
	)
	{
		$this->fields['STAGE_ID'] = 0;
	}

	return $this;
}