I noticed today when checking logstash errors for retrieval of some content that xml stubs dumps (which should not and previously have not loaded revision content) were producing some of the errors in T203075
Stack trace:
#0 [internal function]: MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /srv/mediawiki/php-1.33.0-wmf.23/includes/debug/MWDebug.php(309): trigger_error(string, integer)
#2 /srv/mediawiki/php-1.33.0-wmf.23/includes/debug/MWDebug.php(164): MWDebug::sendMessage(string, array, string, integer)
#3 /srv/mediawiki/php-1.33.0-wmf.23/includes/GlobalFunctions.php(1106): MWDebug::warning(string, integer, integer, string)
#4 /srv/mediawiki/php-1.33.0-wmf.23/includes/Storage/SqlBlobStore.php(353): wfLogWarning(string)
#5 /srv/mediawiki/php-1.33.0-wmf.23/includes/Storage/SqlBlobStore.php(278): MediaWiki\Storage\SqlBlobStore->fetchBlob(string, integer)
#6 /srv/mediawiki/php-1.33.0-wmf.23/includes/libs/objectcache/WANObjectCache.php(1396): MediaWiki\Storage\SqlBlobStore->MediaWiki\Storage\{closure}(boolean, integer, array, NULL)
#7 /srv/mediawiki/php-1.33.0-wmf.23/includes/libs/objectcache/WANObjectCache.php(1257): WANObjectCache->doGetWithSetCallback(string, integer, Closure, array)
#8 /srv/mediawiki/php-1.33.0-wmf.23/includes/Storage/SqlBlobStore.php(280): WANObjectCache->getWithSetCallback(string, integer, Closure, array)
#9 /srv/mediawiki/php-1.33.0-wmf.23/includes/Revision/RevisionStore.php(1461): MediaWiki\Storage\SqlBlobStore->getBlob(string, integer)
#10 /srv/mediawiki/php-1.33.0-wmf.23/includes/Revision/RevisionStore.php(1634): MediaWiki\Revision\RevisionStore->loadSlotContent(MediaWiki\Revision\SlotRecord, NULL, NULL, NULL, integer)
#11 [internal function]: MediaWiki\Revision\RevisionStore->MediaWiki\Revision\{closure}(MediaWiki\Revision\SlotRecord)
#12 /srv/mediawiki/php-1.33.0-wmf.23/includes/Revision/SlotRecord.php(307): call_user_func(Closure, MediaWiki\Revision\SlotRecord)
#13 /srv/mediawiki/php-1.33.0-wmf.23/includes/Revision/RevisionRecord.php(175): MediaWiki\Revision\SlotRecord->getContent()
#14 /srv/mediawiki/php-1.33.0-wmf.23/includes/Revision.php(923): MediaWiki\Revision\RevisionRecord->getContent(string, integer, NULL)
#15 /srv/mediawiki/php-1.33.0-wmf.23/includes/page/WikiPage.php(819): Revision->getContent(integer, NULL)
#16 /srv/mediawiki/php-1.33.0-wmf.23/includes/page/WikiPage.php(1043): WikiPage->getContent()
#17 /srv/mediawiki/php-1.33.0-wmf.23/includes/page/WikiPage.php(1030): WikiPage->insertRedirect()
#18 /srv/mediawiki/php-1.33.0-wmf.23/includes/export/XmlDumpWriter.php(185): WikiPage->getRedirectTarget()
#19 /srv/mediawiki/php-1.33.0-wmf.23/includes/export/WikiExporter.php(482): XmlDumpWriter->openPage(stdClass)
#20 /srv/mediawiki/php-1.33.0-wmf.23/includes/export/WikiExporter.php(445): WikiExporter->outputPageStreamBatch(Wikimedia\Rdbms\ResultWrapper, stdClass)
#21 /srv/mediawiki/php-1.33.0-wmf.23/includes/export/WikiExporter.php(269): WikiExporter->dumpPages(string, boolean)
#22 /srv/mediawiki/php-1.33.0-wmf.23/includes/export/WikiExporter.php(154): WikiExporter->dumpFrom(string, boolean)
#23 /srv/mediawiki/php-1.33.0-wmf.23/maintenance/includes/BackupDumper.php(288): WikiExporter->pagesByRange(integer, integer, boolean)
#24 /srv/mediawiki/php-1.33.0-wmf.23/maintenance/dumpBackup.php(81): BackupDumper->dump(integer, integer)
#25 /srv/mediawiki/php-1.33.0-wmf.23/maintenance/doMaintenance.php(94): DumpBackup->execute()
#26 /srv/mediawiki/php-1.33.0-wmf.23/maintenance/dumpBackup.php(138): require_once(string)
#27 /srv/mediawiki/multiversion/MWScript.php(100): require_once(string)It's plain that content is being retrieved; this is new behavior since the March 20th stubs run and so a regression of some kind.