Wikimedia Bugzilla is closed!

Noticed this when trawling through the exception log on fluorine. We have about 136 instances in the log of "Exception from line 3072 of /usr/local/apache/common-local/php-1.21wmf2/includes/User.php: User::addToDatabase: hit a key conflict attempting to insert a user row, but then it doesn't exist when we select it!"

Don't really know if this is translate or centralauth related but here's a typical stack trace:

23444-2012-11-01 16:29:36 mw24 metawiki: [271da023] /wiki/Special:BannerRandom?userlang=en&sitename=Wikipedia&project=wikipedia&anonymous=false&bucket=0&country=PH&slot=10   Exception from line 3072 of /usr/local/apache/common-local/php-1.21wmf2/includes/User.php: User::addToDatabase: hit a key conflict attempting to insert a user row, but then it doesn't exist when we select it!
23445-#0 /usr/local/apache/common-local/php-1.21wmf2/extensions/CentralAuth/CentralAuthHooks.php(568): User->addToDatabase()
23446-#1 /usr/local/apache/common-local/php-1.21wmf2/extensions/CentralAuth/CentralAuthHooks.php(276): CentralAuthHooks::attemptAddUser(Object(User), 'XXX')
23447-#2 [internal function]: CentralAuthHooks::onUserLoadFromSession(Object(User), NULL)
23448-#3 /usr/local/apache/common-local/php-1.21wmf2/includes/Hooks.php(253): call_user_func_array('CentralAuthHook...', Array)
23449-#4 /usr/local/apache/common-local/php-1.21wmf2/includes/GlobalFunctions.php(3819): Hooks::run('UserLoadFromSes...', Array)
23450-#5 /usr/local/apache/common-local/php-1.21wmf2/includes/User.php(947): wfRunHooks('UserLoadFromSes...', Array)
23451-#6 /usr/local/apache/common-local/php-1.21wmf2/includes/User.php(289): User->loadFromSession()
23452-#7 /usr/local/apache/common-local/php-1.21wmf2/includes/User.php(4125): User->load()
23453-#8 /usr/local/apache/common-local/php-1.21wmf2/includes/User.php(2223): User->loadOptions()
23454-#9 /usr/local/apache/common-local/php-1.21wmf2/includes/context/RequestContext.php(276): User->getOption('language')
23455-#10 /usr/local/apache/common-local/php-1.21wmf2/includes/StubObject.php(183): RequestContext->getLanguage()
23456-#11 /usr/local/apache/common-local/php-1.21wmf2/includes/StubObject.php(128): StubUserLang->_newObject()
23457-#12 /usr/local/apache/common-local/php-1.21wmf2/includes/StubObject.php(78): StubObject->_unstub('getCode', 5)
23458-#13 /usr/local/apache/common-local/php-1.21wmf2/includes/StubObject.php(176): StubObject->_call('getCode', Array)
23459-#14 [internal function]: StubUserLang->__call('getCode', Array)
23460-#15 /usr/local/apache/common-local/php-1.21wmf2/includes/Message.php(347): StubUserLang->getCode()
23461:#16 /usr/local/apache/common-local/php-1.21wmf2/extensions/CentralNotice/special/SpecialBannerLoader.php(198): Message->inLanguage('en')
23462:#17 /usr/local/apache/common-local/php-1.21wmf2/extensions/CentralNotice/special/SpecialBannerLoader.php(126): SpecialBannerLoader->getMessage('centralnotice-t...')
23463:#18 /usr/local/apache/common-local/php-1.21wmf2/extensions/CentralNotice/special/SpecialBannerLoader.php(86): SpecialBannerLoader->getNoticeTemplate()
23464:#19 /usr/local/apache/common-local/php-1.21wmf2/extensions/CentralNotice/special/SpecialBannerRandom.php(40): SpecialBannerLoader->getJsNotice('2012EditorSurve...')
23465-#20 /usr/local/apache/common-local/php-1.21wmf2/includes/SpecialPage.php(599): SpecialBannerRandom->execute(NULL)
23466-#21 /usr/local/apache/common-local/php-1.21wmf2/includes/SpecialPageFactory.php(497): SpecialPage->run(NULL)
23467-#22 /usr/local/apache/common-local/php-1.21wmf2/includes/Wiki.php(291): SpecialPageFactory::executePath(Object(Title), Object(RequestContext))
23468-#23 /usr/local/apache/common-local/php-1.21wmf2/includes/Wiki.php(554): MediaWiki->performRequest()
23469-#24 /usr/local/apache/common-local/php-1.21wmf2/includes/Wiki.php(447): MediaWiki->main()
23470-#25 /usr/local/apache/common-local/php-1.21wmf2/index.php(59): MediaWiki->run()
23471-#26 /usr/local/apache/common-local/live-1.5/index.php(3): require('/usr/local/apac...')
23472-#27 {main}