[c580ff89] [no req]   Flow\Exception\InvalidDataException from line 232 of /vagrant/mediawiki/extensions/Flow/includes/Collection/AbstractCollection.php: Invalid workflow: st2ytfjrxklzz03m
Backtrace:
#0 /vagrant/mediawiki/extensions/Flow/includes/Collection/AbstractCollection.php(217): Flow\Collection\AbstractCollection->getWorkflow()
#1 /vagrant/mediawiki/extensions/Flow/includes/Model/AbstractRevision.php(390): Flow\Collection\AbstractCollection->getTitle()
#2 /vagrant/mediawiki/extensions/Flow/includes/Data/Listener/ReferenceRecorder.php(249): Flow\Model\AbstractRevision->getContent(string)
#3 /vagrant/mediawiki/extensions/Flow/includes/Data/Listener/ReferenceRecorder.php(115): Flow\Data\Listener\ReferenceRecorder->getReferencesFromRevisionContent(Flow\Model\Workflow, Flow\Model\Header, NULL)
#4 /vagrant/mediawiki/extensions/Flow/includes/Data/Listener/ReferenceRecorder.php(82): Flow\Data\Listener\ReferenceRecorder->calculateChangesFromExisting(Flow\Model\Workflow, Flow\Model\Header)
#5 /vagrant/mediawiki/extensions/Flow/includes/Data/ObjectManager.php(261): Flow\Data\Listener\ReferenceRecorder->onAfterInsert(Flow\Model\Header, array, array)
#6 /vagrant/mediawiki/extensions/Flow/includes/Data/ObjectManager.php(170): Flow\Data\ObjectManager->insert(array, array)
#7 /vagrant/mediawiki/extensions/Flow/includes/Data/ObjectManager.php(143): Flow\Data\ObjectManager->multiPut(array, array)
#8 /vagrant/mediawiki/extensions/Flow/includes/Data/ManagerGroup.php(80): Flow\Data\ObjectManager->put(Flow\Model\Header, array)
#9 /vagrant/mediawiki/extensions/Flow/includes/Dump/Importer.php(52): Flow\Data\ManagerGroup->put(Flow\Model\Header, array)
#10 /vagrant/mediawiki/extensions/Flow/includes/Dump/Importer.php(104): Flow\Dump\Importer->put(Flow\Model\Header)
#11 /vagrant/mediawiki/extensions/Flow/Hooks.php(1804): Flow\Dump\Importer->handleHeader()
#12 [internal function]: FlowHooks::onImportHandleToplevelXMLTag(WikiImporter)
#13 /vagrant/mediawiki/includes/Hooks.php(204): call_user_func_array(string, array)
#14 /vagrant/mediawiki/includes/Import.php(560): Hooks::run(string, array)
#15 /vagrant/mediawiki/maintenance/importDump.php(298): WikiImporter->doImport()
#16 /vagrant/mediawiki/maintenance/importDump.php(265): BackupReader->importFromHandle(resource)
#17 /vagrant/mediawiki/maintenance/importDump.php(104): BackupReader->importFromStdin()
#18 /vagrant/mediawiki/maintenance/doMaintenance.php(103): BackupReader->execute()
#19 /vagrant/mediawiki/maintenance/importDump.php(303): require_once(string)
#20 /var/www/w/MWScript.php(89): require_once(string)
#21 {main}