TaskEntity::canEditOwn

public function canEditOwn($userId)
{
	//!!!
	// in case of canEdit($userId) returns FALSE, canEditOwn($userId) may override this

	// if you are not an admin, you must obey "tasks" module settings
	if(!static::checkEditOptionIsOn())
	{
		return false;
	}

	// if you are not an admin AND you are not allowed to view the task, you cant edit even your own comments
	if(!$this->checkHasAccess($userId))
	{
		return false;
	}

	return true;
}