Spotted on beta, first occurrence on [06-Dec-2013 19:07:33]

Can be reproduced by browsing http://en.wikipedia.beta.wmflabs.org/wiki/Wikipedia:Featured_pictures

[06-Dec-2013 19:07:33] Fatal error: Call to a member function getUrl() on a non-object at /data/project/apache/common-local/php-master/includes/Linker.php on line 918
Server: i-0000031a
Method: GET
URL: http://en.wikipedia.beta.wmflabs.org/wiki/Wikipedia:Featured_pictures
Backtrace:
#0 /data/project/apache/common-local/php-master/includes/Linker.php(918): Linker::processResponsiveImages()
#1 /data/project/apache/common-local/php-master/includes/Linker.php(677): Linker::processResponsiveImages(Object(ForeignAPIFile), Object(ThumbnailImage), Array)
#2 /data/project/apache/common-local/php-master/includes/parser/Parser.php(5482): Linker::makeImageLink(Object(Parser), Object(Title), Object(ForeignAPIFile), Array, Array, false, false, 4)
#3 /data/project/apache/common-local/php-master/includes/parser/Parser.php(2088): Parser->makeImage(Object(Title), '150px', Object(LinkHolderArray))
#4 /data/project/apache/common-local/php-master/includes/parser/Parser.php(1825): Parser->replaceInternalLinks2('?:''"WP:FP" red...')
#5 /data/project/apache/common-local/php-master/includes/parser/Parser.php(1230): Parser->replaceInternalLinks('[[Category:Wiki...')
#6 /data/project/apache/common-local/php-master/includes/parser/Parser.php(395): Parser->internalParse('{{pp-semi|small...')
#7 [internal function]: Parser->parse('{{pp-semi|small...', Object(Title), Object(ParserOptions), true, true, 38155)
#8 /data/project/apache/common-local/php-master/includes/StubObject.php(99): call_user_func_array(Array, Array)
#9 /data/project/apache/common-local/php-master/includes/StubObject.php(119): StubObject->_call('parse', Array)
#10 /data/project/apache/common-local/php-master/includes/content/WikitextContent.php(306): StubObject->__call('parse', Array)
#11 /data/project/apache/common-local/php-master/includes/content/WikitextContent.php(306): StubObject->parse('{{pp-semi|small...', Object(Title), Object(ParserOptions), true, true, 38155)
#12 /data/project/apache/common-local/php-master/includes/WikiPage.php(3560): WikitextContent->getParserOutput(Object(Title), 38155, Object(ParserOptions))
#13 /data/project/apache/common-local/php-master/includes/PoolCounter.php(222): PoolWorkArticleView->doWork()
#14 /data/project/apache/common-local/php-master/includes/Article.php(708): PoolCounterWork->execute()
#15 /data/project/apache/common-local/php-master/includes/actions/ViewAction.php(44): Article->view()
#16 /data/project/apache/common-local/php-master/includes/Wiki.php(441): ViewAction->show()
#17 /data/project/apache/common-local/php-master/includes/Wiki.php(305): MediaWiki->performAction(Object(Article), Object(Title))
#18 /data/project/apache/common-local/php-master/includes/Wiki.php(596): MediaWiki->performRequest()
#19 /data/project/apache/common-local/php-master/includes/Wiki.php(460): MediaWiki->main()
#20 /data/project/apache/common-local/php-master/index.php(49): MediaWiki->run()
#21 /data/project/apache/common-local/w/index.php(3): require('/data/project/a...')
#22 {main}

Version: 1.23.0
Severity: normal