XFI vBulletin: Undefined array key "topicactiondelay" when importing RSS Feeds

[Kirby]

Affected version

1.5.1

#0 src/addons/XFI/Import/Importer/vBulletin.php(2905): XF::handlePhpError(2, '[E_WARNING] Und...', '/var/www/vhosts...', 2905)
#1 src/XF/Import/Runner.php(244): XFI\Import\Importer\vBulletin->stepFeeds(Object(XF\Import\StepState), Array, 8)
#2 src/XF/Import/Runner.php(61): XF\Import\Runner->runStep('feeds', Object(XF\Import\StepState), 8)
#3 src/XF/Import/Runner.php(154): XF\Import\Runner->run()
#4 src/XF/Import/ParallelRunner.php(41): XF\Import\Runner->runUntilCompleteInternal(Object(XF\Import\Manager), Object(Closure))
#5 src/XF/Import/Runner.php(130): XF\Import\ParallelRunner->runUntilCompleteInternal(Object(XF\Import\Manager), Object(Closure))
#6 src/XF/Cli/Command/Import.php(156): XF\Import\Runner->runUntilComplete(Object(XF\Import\Manager), Object(Closure))
#7 src/vendor/symfony/console/Command/Command.php(255): XF\Cli\Command\Import->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#8 src/vendor/symfony/console/Application.php(992): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#9 src/vendor/symfony/console/Application.php(255): Symfony\Component\Console\Application->doRunCommand(Object(XF\Cli\Command\Import), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#10 src/vendor/symfony/console/Application.php(148): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#11 src/XF/Cli/Runner.php(111): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#12 cmd.php(15): XF\Cli\Runner->run()
#13 {main}

$import->discussion_open = !($this->bitwise($feed['options'], 4) && $feed['topicactiondelay']);

A standard vBulletin (4) schema (taken from vBulletin 4.2.5) does not have a field topicactiondelay:

$schema['CREATE']['query']['rssfeed'] = "
CREATE TABLE " . TABLE_PREFIX . "rssfeed (
    rssfeedid INT UNSIGNED NOT NULL AUTO_INCREMENT,
    title VARCHAR(250) NOT NULL DEFAULT '',
    url TEXT,
    port SMALLINT UNSIGNED NOT NULL DEFAULT '80',
    ttl SMALLINT UNSIGNED NOT NULL DEFAULT '1500',
    maxresults SMALLINT NOT NULL DEFAULT '0',
    userid INT UNSIGNED NOT NULL DEFAULT '0',
    forumid SMALLINT UNSIGNED NOT NULL DEFAULT '0',
    prefixid VARCHAR(25) NOT NULL DEFAULT '',
    iconid SMALLINT UNSIGNED NOT NULL DEFAULT '0',
    titletemplate MEDIUMTEXT,
    bodytemplate MEDIUMTEXT,
    searchwords MEDIUMTEXT,
    itemtype ENUM('thread','announcement') NOT NULL DEFAULT 'thread',
    threadactiondelay SMALLINT UNSIGNED NOT NULL DEFAULT '0',
    endannouncement INT UNSIGNED NOT NULL DEFAULT '0',
    options INT UNSIGNED NOT NULL DEFAULT '0',
    lastrun INT UNSIGNED NOT NULL DEFAULT '0',
    PRIMARY KEY (rssfeedid),
    KEY lastrun (lastrun)
)
";
$schema['CREATE']['explain']['rssfeed'] = sprintf($vbphrase['create_table'], TABLE_PREFIX . "rssfeed");

So most likely this should be threadactiondelay?