Following error caught:

<error code="internal_api_error_MWException" info="Exception Caught: Internal error in ApiResult::setElement: Attempting to merge element imageinfo">

#0 /usr/local/apache/common-local/php-1.5/includes/api/ApiBase.php(641): wfDebugDieBacktrace('Internal error ...')
#1 /usr/local/apache/common-local/php-1.5/includes/api/ApiResult.php(106): ApiBase::dieDebug('ApiResult::setE...', 'Attempting to m...')
#2 /usr/local/apache/common-local/php-1.5/includes/api/ApiResult.php(186): ApiResult::setElement(Array, 'imageinfo', Array)
#3 /usr/local/apache/common-local/php-1.5/includes/api/ApiQueryBase.php(174): ApiResult->addValue('query-continue', 'imageinfo', Array)
#4 /usr/local/apache/common-local/php-1.5/includes/api/ApiQueryImageInfo.php(88): ApiQueryBase->setContinueEnumParameter('start', '20080119002020')
#5 /usr/local/apache/common-local/php-1.5/includes/api/ApiQuery.php(209): ApiQueryImageInfo->execute()
#6 /usr/local/apache/common-local/php-1.5/includes/api/ApiMain.php(347): ApiQuery->execute()
#7 /usr/local/apache/common-local/php-1.5/includes/api/ApiMain.php(215): ApiMain->executeAction()
#8 /usr/local/apache/common-local/php-1.5/includes/api/ApiMain.php(200): ApiMain->executeActionWithErrorHandling()
#9 /usr/local/apache/common-local/php-1.5/api.php(77): ApiMain->execute()
#10 /usr/local/apache/common-local/live-1.5/api.php(3): require('/usr/local/apac...')
#11 {main}

</error>

Version: unspecified
Severity: major
URL: http://en.wikipedia.org/w/api.php?action=query&generator=categorymembers&gcmcategory=Disputed_non-free_images_as_of_24_January_2008&gcmnamespace=6&gcmlimit=50&prop=imageinfo|categories|revisions&grvlimit=1&grvprop=user