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Flow links formatting fail on Special:CheckUser
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Description

When viewing the Flow changes of a user on Special:CheckUser, FlowHooks::onSpecialCheckUserGetLinksFromRow tries to format links but fails and spams the log with:

2017-01-06 16:03:45 mediawiki-vagrant wiki: FlowHooks::onSpecialCheckUserGetLinksFromRow: Exception formatting cu {"cuc_id":"8","cuc_namespace":"2600","cuc_title":"Tend0ijgozdoy5bf","cuc_user":"9","cuc_user_text":"Goodguy","cuc_actiontext":"","cuc_comment":"v1,reply,tend0ijgozdoy5bf,tend0ijldcomypgr","cuc_minor":"0","cuc_page_id":"0","cuc_this_oldid":"0","cuc_last_oldid":"0","cuc_type":"142","cuc_timestamp":"20161103132355","cuc_ip":"10.0.2.2","cuc_ip_hex":"0A000202","cuc_xff":"0","cuc_xff_hex":null,"cuc_agent":"Mozilla\/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/54.0.2840.71 Safari\/537.36","cuc_private":null} exception 'Flow\Exception\FlowException' with message 'could not locate workflow for revision tend0ijldcomypgr' in /vagrant/mediawiki/extensions/Flow/includes/Formatter/AbstractQuery.php:209

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Event Timeline

The most recent report:
Error
MediaWiki version: 1.36.0-wmf.13

could not locate workflow for revision vt57qmt34oyggq9c
exception.trace
#0 /srv/mediawiki/php-1.36.0-wmf.13/extensions/Flow/includes/Formatter/CheckUserQuery.php(90): Flow\Formatter\AbstractQuery->buildResult(Flow\Model\Header, string, Flow\Formatter\FormatterRow)
#1 /srv/mediawiki/php-1.36.0-wmf.13/extensions/Flow/includes/Hooks.php(672): Flow\Formatter\CheckUserQuery->getResult(stdClass)
#2 /srv/mediawiki/php-1.36.0-wmf.13/extensions/Flow/includes/Hooks.php(635): Flow\Hooks::getReplacementRowItems(RequestContext, stdClass)
#3 /srv/mediawiki/php-1.36.0-wmf.13/includes/HookContainer/HookContainer.php(333): Flow\Hooks::onSpecialCheckUserGetLinksFromRow(SpecialCheckUser, stdClass, array)
#4 /srv/mediawiki/php-1.36.0-wmf.13/includes/HookContainer/HookContainer.php(140): MediaWiki\HookContainer\HookContainer->callLegacyHook(string, array, array, array)
#5 /srv/mediawiki/php-1.36.0-wmf.13/includes/Hooks.php(137): MediaWiki\HookContainer\HookContainer->run(string, array, array)
#6 /srv/mediawiki/php-1.36.0-wmf.13/extensions/CheckUser/includes/specials/SpecialCheckUser.php(1978): Hooks::run(string, array)
#7 /srv/mediawiki/php-1.36.0-wmf.13/extensions/CheckUser/includes/specials/SpecialCheckUser.php(1751): SpecialCheckUser->getLinksFromRow(stdClass)
#8 /srv/mediawiki/php-1.36.0-wmf.13/extensions/CheckUser/includes/specials/SpecialCheckUser.php(1005): SpecialCheckUser->CUChangesLine(stdClass)
#9 /srv/mediawiki/php-1.36.0-wmf.13/extensions/CheckUser/includes/specials/SpecialCheckUser.php(768): SpecialCheckUser->doIPEditsRequestOutput(Wikimedia\Rdbms\ResultWrapper, string, boolean)
#10 /srv/mediawiki/php-1.36.0-wmf.13/extensions/CheckUser/includes/specials/SpecialCheckUser.php(133): SpecialCheckUser->doIPEditsRequest(string, boolean, integer)
#11 /srv/mediawiki/php-1.36.0-wmf.13/includes/specialpage/SpecialPage.php(600): SpecialCheckUser->execute(NULL)
#12 /srv/mediawiki/php-1.36.0-wmf.13/includes/specialpage/SpecialPageFactory.php(837): SpecialPage->run(NULL)
#13 /srv/mediawiki/php-1.36.0-wmf.13/includes/MediaWiki.php(307): MediaWiki\SpecialPage\SpecialPageFactory->executePath(Title, RequestContext)
#14 /srv/mediawiki/php-1.36.0-wmf.13/includes/MediaWiki.php(940): MediaWiki->performRequest()
#15 /srv/mediawiki/php-1.36.0-wmf.13/includes/MediaWiki.php(543): MediaWiki->main()
#16 /srv/mediawiki/php-1.36.0-wmf.13/index.php(53): MediaWiki->run()
#17 /srv/mediawiki/php-1.36.0-wmf.13/index.php(46): wfIndexMain()
#18 /srv/mediawiki/w/index.php(3): require(string)
#19 {main}