ActivitiesChangesCollection::getSignificantlyChangedActivities

public function getSignificantlyChangedActivities(bool $withResponsible = false): self
{
	$result = new self();
	/** @var $activityChange ActivityChange */
	foreach ($this->values as $activityChange)
	{
		if (
			$activityChange->isIncomingChannelChanged()
			|| $activityChange->isDeadlineChanged()
			|| $activityChange->isCompletedChanged()
			|| $activityChange->areBindingsChanged()
			|| $activityChange->isLightTimeChanges()
			|| ($withResponsible && $activityChange->isResponsibleIdChanged())
		)
		{
			$result->add($activityChange);
		}
	}

	return $result;
}