Trying to "Save" an edit at any page at Wikitech results in an error. E.g.
MediaWiki internal error. Original exception: [a2f87b9ec422d82400d3c072] 2018-08-02 03:45:14: Fatal exception of type "Wikimedia\Rdbms\DBQueryError" Exception caught inside exception handler. Set $wgShowExceptionDetails = true; at the bottom of LocalSettings.php to show detailed debugging information.
Try at https://wikitech.wikimedia.org/w/index.php?title=User:Quiddity/Sandbox4&action=edit