TYPO3 Core

PHP Warning: Missing argument 2 for extDirect_DataProvider_BackendUserSettings::addToList() 
in /home/phil/t3-playground/t3-git/t3lib/extjs/dataprovider/class.extdirect_dataprovider_beusersettings.php line 107

This happens if I try to save a content element with a inline relation from the test extension from #27957.

The reason is that the function processRpc in class.t3lib_extjs_extdirectrouter.php does

return call_user_func_array(
            array($endpointObject, $singleRequest->method),
            is_array($singleRequest->data) ? $singleRequest->data : array()
        );

I'll attach the raw json data.