[f68925f4] /wiki/Special:Log Flow\Exception\WikitextException from line 150 of /srv/mediawiki/php-master/extensions/Flow/includes/Conversion/Utils.php: Conversion from 'topic-title-wikitext' to 'html' was requested, but this is not supported.

2015-11-20 16:19:13 deployment-mediawiki01 enwiki exception ERROR: [f68925f4] /wiki/Special:Log   Flow\Exception\WikitextException from line 150 of /srv/mediawiki/php-master/extensions/Flow/includes/Conversion/Utils.php: Conversion from 'topic-title-wikitext' to 'html' was requested, but this is not supported. {"exception_id":"f68925f4"} 
[Exception Flow\Exception\WikitextException] (/srv/mediawiki/php-master/extensions/Flow/includes/Conversion/Utils.php:150) Conversion from 'topic-title-wikitext' to 'html' was requested, but this is not supported.
  #0 /srv/mediawiki/php-master/extensions/Flow/includes/Conversion/Utils.php(56): Flow\Conversion\Utils::commentParser(string, string, string)
  #1 /srv/mediawiki/php-master/extensions/Flow/includes/Model/AbstractRevision.php(391): Flow\Conversion\Utils::convert(string, string, string, Title)
  #2 /srv/mediawiki/php-master/extensions/Flow/includes/Log/ActionFormatter.php(104): Flow\Model\AbstractRevision->getContent()
  #3 /srv/mediawiki/php-master/extensions/Flow/includes/Log/ActionFormatter.php(124): Flow\Log\ActionFormatter->getActionMessage()
  #4 /srv/mediawiki/php-master/includes/logging/LogEventsList.php(317): Flow\Log\ActionFormatter->getActionText()
  #5 /srv/mediawiki/php-master/includes/logging/LogPager.php(347): LogEventsList->logLine(stdClass)
  #6 /srv/mediawiki/php-master/includes/pager/IndexPager.php(442): LogPager->formatRow(stdClass)
  #7 /srv/mediawiki/php-master/includes/specials/SpecialLog.php(202): IndexPager->getBody()
  #8 /srv/mediawiki/php-master/includes/specials/SpecialLog.php(109): SpecialLog->show(FormOptions, array)
  #9 /srv/mediawiki/php-master/includes/specialpage/SpecialPage.php(384): SpecialLog->execute(NULL)
  #10 /srv/mediawiki/php-master/includes/specialpage/SpecialPageFactory.php(553): SpecialPage->run(NULL)
  #11 /srv/mediawiki/php-master/includes/MediaWiki.php(248): SpecialPageFactory::executePath(Title, RequestContext)
  #12 /srv/mediawiki/php-master/includes/MediaWiki.php(672): MediaWiki->performRequest()
  #13 /srv/mediawiki/php-master/includes/MediaWiki.php(474): MediaWiki->main()
  #14 /srv/mediawiki/php-master/index.php(43): MediaWiki->run()
  #15 /srv/mediawiki/w/index.php(3): include(string)
  #16 {main}