[TYPO3-dev] IRRE with mm-relations broken?

[Steffen Ritter]

Hey list,
just stumbling over an problem I currently do not know if I have some 
configuration problems or if the relation type just broke.

I configured a field like this:
'seiten' => array(
	'exclude' => 0,
	'label'   => 'LLL:EXT:...',
	'config'  => array(
		'type' => 'inline',
		'appearance' => array(
			'collapseAll' => true,
			'expandSingle' => true,
			'newRecordLinkAddTitle' => true,
			'newRecordLinkPosition' => 'both',
			'useSortable' => true,
		),
		'minitems' => 0,
		'maxitems' => 9999,
		'foreign_table' => 'tx_rsarticles_domain_model_seite',
		'MM' => 'tx_rsarticles_artikel_seite_mm',
	)
),

The inline records are shown - but saved commasepareated to the parent 
record - not to the MM-table.

I am missing something or is there currently a bug?

regards

Steffen