Special:Preferences throws an error on Beta Meta-Wiki.
https://meta.wikipedia.beta.wmflabs.org/wiki/Special:Preferences
GlobalWatchlist is only installed on Meta-Wiki.
[Yhl5CwPi1uq8kC9ZFWR-mwAAAAQ] /wiki/Special:Preferences DomainException: HTMLForm::getField: no field named globalwatchlist-prefs Backtrace: from /srv/mediawiki/php-master/includes/htmlform/HTMLForm.php(441) #0 /srv/mediawiki/php-master/includes/preferences/DefaultPreferencesFactory.php(326): HTMLForm->getField(string) #1 /srv/mediawiki/php-master/includes/preferences/DefaultPreferencesFactory.php(251): MediaWiki\Preferences\DefaultPreferencesFactory->loadPreferenceValues(User, RequestContext, array) #2 /srv/mediawiki/php-master/extensions/GlobalPreferences/includes/GlobalPreferencesFactory.php(116): MediaWiki\Preferences\DefaultPreferencesFactory->getFormDescriptor(User, RequestContext) #3 /srv/mediawiki/php-master/includes/preferences/DefaultPreferencesFactory.php(1755): GlobalPreferences\GlobalPreferencesFactory->getFormDescriptor(User, RequestContext) #4 /srv/mediawiki/php-master/includes/specials/SpecialPreferences.php(132): MediaWiki\Preferences\DefaultPreferencesFactory->getForm(User, RequestContext, string) #5 /srv/mediawiki/php-master/includes/specials/SpecialPreferences.php(110): SpecialPreferences->getFormObject(User, RequestContext) #6 /srv/mediawiki/php-master/includes/specialpage/SpecialPage.php(671): SpecialPreferences->execute(NULL) #7 /srv/mediawiki/php-master/includes/specialpage/SpecialPageFactory.php(1378): SpecialPage->run(NULL) #8 /srv/mediawiki/php-master/includes/MediaWiki.php(315): MediaWiki\SpecialPage\SpecialPageFactory->executePath(string, RequestContext) #9 /srv/mediawiki/php-master/includes/MediaWiki.php(910): MediaWiki->performRequest() #10 /srv/mediawiki/php-master/includes/MediaWiki.php(564): MediaWiki->main() #11 /srv/mediawiki/php-master/index.php(53): MediaWiki->run() #12 /srv/mediawiki/php-master/index.php(46): wfIndexMain() #13 /srv/mediawiki/w/index.php(3): require(string) #14 {main}