Spotted in production:
[09a78b5c2ff178424bb3103e] /rpc/RunJobs.php?wiki=testwiki&type=cirrusSearchLinksUpdate&maxtime=30&maxmem=300M Flow\Exception\InvalidDataException from line 366 of /srv/mediawiki/php-1.30.0-wmf.17/extensions/Flow/includes/Model/AbstractRevision.php: Failed to load the content
With the following stacktrace:
```
#0 /srv/mediawiki/php-1.30.0-wmf.17/extensions/Flow/includes/Templating.php(154): Flow\Model\AbstractRevision->getContent(string)
#1 /srv/mediawiki/php-1.30.0-wmf.17/extensions/Flow/includes/Formatter/RevisionFormatter.php(1013): Flow\Templating->getContent(Flow\Model\PostRevision, string)
#2 /srv/mediawiki/php-1.30.0-wmf.17/extensions/Flow/includes/Formatter/RevisionFormatter.php(334): Flow\Formatter\RevisionFormatter->processParam(string, Flow\Model\PostRevision, Flow\Model\UUID, Flow\View, Flow\Formatter\TopicRow)
#3 /srv/mediawiki/php-1.30.0-wmf.17/extensions/Flow/includes/Formatter/TopicFormatter.php(45): Flow\Formatter\RevisionFormatter->formatApi(Flow\Formatter\TopicRow, Flow\View)
#4 /srv/mediawiki/php-1.30.0-wmf.17/extensions/Flow/includes/Block/Topic.php(642): Flow\Formatter\TopicFormatter->formatApi(Flow\Model\Workflow, array, Flow\View)
#5 /srv/mediawiki/php-1.30.0-wmf.17/extensions/Flow/includes/Block/Topic.php(549): Flow\Block\TopicBlock->renderTopicApi(array)
#6 /srv/mediawiki/php-1.30.0-wmf.17/extensions/Flow/includes/View.php(189): Flow\Block\TopicBlock->renderApi(array)
#7 /srv/mediawiki/php-1.30.0-wmf.17/extensions/Flow/includes/View.php(68): Flow\View->buildApiResponse(Flow\WorkflowLoader, array, string, array)
#8 /srv/mediawiki/php-1.30.0-wmf.17/extensions/Flow/includes/Content/BoardContent.php(220): Flow\View->show(Flow\WorkflowLoader, string)
#9 /srv/mediawiki/php-1.30.0-wmf.17/extensions/Flow/includes/Content/BoardContent.php(171): Flow\Content\BoardContent->generateHtml(Title, User)
#10 /srv/mediawiki/php-1.30.0-wmf.17/includes/content/ContentHandler.php(1205): Flow\Content\BoardContent->getParserOutput(Title, integer, ParserOptions)
#11 /srv/mediawiki/php-1.30.0-wmf.17/extensions/CirrusSearch/includes/Updater.php(368): ContentHandler->getParserOutputForIndexing(WikiPage, ParserCache)
#12 /srv/mediawiki/php-1.30.0-wmf.17/extensions/CirrusSearch/includes/Updater.php(199): CirrusSearch\Updater->buildDocumentsForPages(array, integer)
#13 /srv/mediawiki/php-1.30.0-wmf.17/extensions/CirrusSearch/includes/Updater.php(82): CirrusSearch\Updater->updatePages(array, integer)
#14 /srv/mediawiki/php-1.30.0-wmf.17/extensions/CirrusSearch/includes/Job/LinksUpdate.php(52): CirrusSearch\Updater->updateFromTitle(Title)
#15 /srv/mediawiki/php-1.30.0-wmf.17/extensions/CirrusSearch/includes/Job/Job.php(98): CirrusSearch\Job\LinksUpdate->doJob()
#16 /srv/mediawiki/php-1.30.0-wmf.17/includes/jobqueue/JobRunner.php(295): CirrusSearch\Job\Job->run()
#17 /srv/mediawiki/php-1.30.0-wmf.17/includes/jobqueue/JobRunner.php(193): JobRunner->executeJob(CirrusSearch\Job\LinksUpdate, Wikimedia\Rdbms\LBFactoryMulti, BufferingStatsdDataFactory, integer)
#18 /srv/mediawiki/rpc/RunJobs.php(47): JobRunner->run(array)
#19 {main}
```
It's impossible to tell from the trace (which I'll also remedy), but we think this is {T95580}. They're testwiki posts, but we need to make sure it doesn't break here.