==== Error ====
* mwversion: `master`
* reqId: `YHR8eutURElmkalvrism2AAAAA0` (beta)
```name=normalized_message
Error: Call to a member function equals() on boolean
```
```name=exception.trace,lines=10
Original exception: [YHR8eutURElmkalvrism2AAAAA0] /wiki/User_talk:8.8.8.8 Error: Call to a member function equals() on boolean
Backtrace:
from /srv/mediawiki/php-master/extensions/DiscussionTools/includes/Hooks/HookUtils.php(225)
#0 /srv/mediawiki/php-master/extensions/DiscussionTools/includes/Hooks/PageHooks.php(122): MediaWiki\Extension\DiscussionTools\Hooks\HookUtils::isFeatureEnabledForOutput(OutputPage, string)
#1 /srv/mediawiki/php-master/includes/HookContainer/HookContainer.php(160): MediaWiki\Extension\DiscussionTools\Hooks\PageHooks->onOutputPageBeforeHTML(OutputPage, string)
#2 /srv/mediawiki/php-master/includes/HookContainer/HookRunner.php(2762): MediaWiki\HookContainer\HookContainer->run(string, array)
#3 /srv/mediawiki/php-master/includes/OutputPage.php(2007): MediaWiki\HookContainer\HookRunner->onOutputPageBeforeHTML(OutputPage, string)
#4 /srv/mediawiki/php-master/includes/OutputPage.php(2019): OutputPage->addParserOutputText(ParserOutput, array)
#5 /srv/mediawiki/php-master/includes/OutputPage.php(1869): OutputPage->addParserOutput(ParserOutput, array)
#6 /srv/mediawiki/php-master/includes/OutputPage.php(1795): OutputPage->addWikiTextTitleInternal(string, Title, boolean, boolean)
#7 /srv/mediawiki/php-master/includes/page/Article.php(1495): OutputPage->addWikiTextAsInterface(string)
#8 /srv/mediawiki/php-master/includes/page/Article.php(638): Article->showMissingArticle()
#9 /srv/mediawiki/php-master/includes/page/Article.php(561): Article->generateContentOutput(User, ParserOptions, integer, OutputPage, array)
#10 /srv/mediawiki/php-master/includes/actions/ViewAction.php(74): Article->view()
#11 /srv/mediawiki/php-master/includes/MediaWiki.php(535): ViewAction->show()
#12 /srv/mediawiki/php-master/includes/MediaWiki.php(319): MediaWiki->performAction(Article, Title)
#13 /srv/mediawiki/php-master/includes/MediaWiki.php(916): MediaWiki->performRequest()
#14 /srv/mediawiki/php-master/includes/MediaWiki.php(550): MediaWiki->main()
#15 /srv/mediawiki/php-master/index.php(53): MediaWiki->run()
#16 /srv/mediawiki/php-master/index.php(46): wfIndexMain()
#17 /srv/mediawiki/w/index.php(3): require(string)
#18 {main}
```
==== Impact ====
User_talk:<any IP address> is broken on all beta wikis. Presumably will be in the next wmf branch as well.
==== Notes ====
Sounds to be caused by #discussiontools .