TYPO3 Core

I had a bug in 6.1.9 with dd_googlesitemap and after debugging I'm pretty sure that there is some sort of flaw in the core.

dd_googlesitemap disables logging with:

$tce->enableLogging = FALSE;

Following that DataHandler->log() will not return anything.
Therefor $theLogId in DataHandler->updateDB() is empty.
And DataHandler->setHistory() fails because sys_log_uid can't be NULL.

Related error message from T3:

caller: TYPO3\CMS\Core\Database\DatabaseConnection::exec_INSERTquery
ERROR: Column 'sys_log_uid' cannot be null
lastBuiltQuery: INSERT INTO sys_history (history_data,fieldlist,tstamp,tablename,recuid,sys_log_uid) VALUES ('a:2:{s:9:\"oldRecord\";a:1:{s:26:\"tx_ddgooglesitemap_lastmod\";s:54:\"1399301453,1399301684,1399301697,1399449582,1399451432\";}s:9:\"newRecord\";a:1:{s:26:\"tx_ddgooglesitemap_lastmod\";s:54:\"1399301684,1399301697,1399449582,1399451432,1399451867\";}}','tx_ddgooglesitemap_lastmod','1399451865','pages','160',NULL)
debug_backtrace: TYPO3\CMS\Backend\Controller\EditDocumentController->processData#54 // TYPO3\CMS\Core\DataHandling\DataHandler->process_datamap#470 // TYPO3\CMS\Core\DataHandling\DataHandler->hook_processDatamap_afterDatabaseOperations#1068 // tx_ddgooglesitemap_tcemain->processDatamap_afterDatabaseOperations#681 // tx_ddgooglesitemap_tcemain->recordPageChange#64 // TYPO3\CMS\Core\DataHandling\DataHandler->process_datamap#105 // TYPO3\CMS\Core\DataHandling\DataHandler->updateDB#1061 // TYPO3\CMS\Core\DataHandling\DataHandler->setHistory#5616 // TYPO3\CMS\Core\Database\DatabaseConnection->exec_INSERTquery#5752 // TYPO3\CMS\Core\Database\DatabaseConnection->debug#198