Found when checking T180607: Nuke does not list hidden Flow topics.
- User A created three topics on SD board.
- User B hides those three topics.
- User Administrator deletes those three hidden topics via Special:Nuke .
- User Administrator checks 'View history' on the SD board and clicks on the cross-out link, see the screenshot below.
<span class="mw-changeslist-date history-deleted"><a href="https://en.wikipedia.beta.wmflabs.org/w/index.php?title=Topic:U3lv6guxmjfr7gun&topic_revId=u3lvlowjils63kg9&action=single-view" title="topic revision">21:51, 11 December 2017</a></span>
After the click, the page loads:
https://en.wikipedia.beta.wmflabs.org/w/index.php?title=Topic:U3lv6guxmjfr7gun&topic_revId=u3lvlowjils63kg9&action=single-view
The following error is displayed:
[Wi8BIgpEE4AAAAN19mUAAAAE] 2017-12-11 22:05:23: Fatal exception of type "Wikimedia\Rdbms\DBQueryError"