=== Error ===
Request ID: `W5A4mwpAIDEAAIJd2S8AAACM `
```name=message
[{exception_id}] {exception_url} InvalidArgumentException from line 279 of /srv/mediawiki/php-1.32.0-wmf.20/includes/Storage/MutableRevisionRecord.php: The given Title does not belong to page ID 813794
```
```name=stacktrace,lines=10
#0 /srv/mediawiki/php-1.32.0-wmf.20/includes/Storage/PageUpdater.php(865): MediaWiki\Storage\MutableRevisionRecord->setPageId(integer)
#1 /srv/mediawiki/php-1.32.0-wmf.20/includes/Storage/PageUpdater.php(926): MediaWiki\Storage\PageUpdater->makeNewRevision(CommentStoreComment, User, string, integer, Status)
#2 /srv/mediawiki/php-1.32.0-wmf.20/includes/Storage/PageUpdater.php(733): MediaWiki\Storage\PageUpdater->doModify(CommentStoreComment, User, integer)
#3 /srv/mediawiki/php-1.32.0-wmf.20/includes/page/WikiPage.php(1865): MediaWiki\Storage\PageUpdater->saveRevision(CommentStoreComment, integer)
#4 /srv/mediawiki/php-1.32.0-wmf.20/extensions/Flow/includes/TalkpageManager.php(136): WikiPage->doEditContent(Flow\Content\BoardContent, CommentStoreComment, integer, boolean, User)
#5 /srv/mediawiki/php-1.32.0-wmf.20/extensions/Flow/includes/Data/Listener/TopicPageCreationListener.php(44): Flow\TalkpageManager->ensureFlowRevision(Article, Flow\Model\Workflow)
#6 /srv/mediawiki/php-1.32.0-wmf.20/includes/deferred/MWCallableUpdate.php(34): Closure$Flow\Data\Listener\TopicPageCreationListener::onAfterInsert()
#7 /srv/mediawiki/php-1.32.0-wmf.20/includes/deferred/DeferredUpdates.php(268): MWCallableUpdate->doUpdate()
#8 /srv/mediawiki/php-1.32.0-wmf.20/includes/deferred/DeferredUpdates.php(214): DeferredUpdates::runUpdate(MWCallableUpdate, Wikimedia\Rdbms\LBFactoryMulti, string, integer)
#9 /srv/mediawiki/php-1.32.0-wmf.20/includes/deferred/DeferredUpdates.php(130): DeferredUpdates::execute(array, string, integer)
#10 /srv/mediawiki/php-1.32.0-wmf.20/includes/MediaWiki.php(607): DeferredUpdates::doUpdates(string, integer)
#11 /srv/mediawiki/php-1.32.0-wmf.20/includes/MediaWiki.php(576): MediaWiki::preOutputCommit(RequestContext, Closure$MediaWiki::main;2427)
#12 /srv/mediawiki/php-1.32.0-wmf.20/includes/MediaWiki.php(884): MediaWiki->doPreOutputCommit(Closure$MediaWiki::main;2427)
#13 /srv/mediawiki/php-1.32.0-wmf.20/includes/MediaWiki.php(525): MediaWiki->main()
#14 /srv/mediawiki/php-1.32.0-wmf.20/index.php(42): MediaWiki->run()
```
== Notes ===
It seems to mostly happen on Special:Preferences from a deferred update.
{F26037289}
This fatal exception was recorded 127 times by Logstash in the last 7 days. It is a **new** regression introduced in 1.32.0-wmf.20. It was not seen prior to that.