Error
Request URL: https://en.wikipedia.org/wiki/Special:Book
Request ID: XOwxIgpAAEMAAEWmaxgAAAAP
message
PHP Notice: Undefined index: subtitle
trace (since 1.34-wmf.6)
#0 /srv/mediawiki/php-1.34.0-wmf.6/extensions/Collection/includes/Specials/SpecialCollection.php(1013): MWExceptionHandler::handleError(integer, string, string, integer, array, array) #1 /srv/mediawiki/php-1.34.0-wmf.6/extensions/Collection/includes/Specials/SpecialCollection.php(374): SpecialCollection->saveCollection(Title, boolean) #2 /srv/mediawiki/php-1.34.0-wmf.6/extensions/Collection/includes/Specials/SpecialCollection.php(241): SpecialCollection->processSaveCollectionCommand() #3 /srv/mediawiki/php-1.34.0-wmf.6/includes/specialpage/SpecialPage.php(570): SpecialCollection->execute(NULL) #4 /srv/mediawiki/php-1.34.0-wmf.6/includes/specialpage/SpecialPageFactory.php(575): SpecialPage->run(NULL) #5 /srv/mediawiki/php-1.34.0-wmf.6/includes/MediaWiki.php(288): MediaWiki\Special\SpecialPageFactory->executePath(Title, RequestContext) #6 /srv/mediawiki/php-1.34.0-wmf.6/includes/MediaWiki.php(865): MediaWiki->performRequest() #7 /srv/mediawiki/php-1.34.0-wmf.6/includes/MediaWiki.php(515): MediaWiki->main() #8 /srv/mediawiki/php-1.34.0-wmf.6/index.php(42): MediaWiki->run()
trace (upto 1.34-wmf.5)
#0 /srv/mediawiki/php-1.34.0-wmf.4/extensions/Collection/Collection.body.php(1013): MWExceptionHandler::handleError(integer, string, string, integer, array, array) #1 /srv/mediawiki/php-1.34.0-wmf.4/extensions/Collection/Collection.body.php(374): SpecialCollection->saveCollection(Title, boolean) #2 /srv/mediawiki/php-1.34.0-wmf.4/extensions/Collection/Collection.body.php(241): SpecialCollection->processSaveCollectionCommand() #3 /srv/mediawiki/php-1.34.0-wmf.4/includes/specialpage/SpecialPage.php(569): SpecialCollection->execute(NULL) #4 /srv/mediawiki/php-1.34.0-wmf.4/includes/specialpage/SpecialPageFactory.php(575): SpecialPage->run(NULL) #5 /srv/mediawiki/php-1.34.0-wmf.4/includes/MediaWiki.php(288): MediaWiki\Special\SpecialPageFactory->executePath(Title, RequestContext) #6 /srv/mediawiki/php-1.34.0-wmf.4/includes/MediaWiki.php(865): MediaWiki->performRequest() #7 /srv/mediawiki/php-1.34.0-wmf.4/includes/MediaWiki.php(515): MediaWiki->main() #8 /srv/mediawiki/php-1.34.0-wmf.4/index.php(42): MediaWiki->run()
Impact
Unknown.
Notes
Seen since at least 1.34-wmf.3, possibly longer.
Might be similar to T189636, which affected a different file entry point from the same code base.