TYPO3 Core

Hey folks,
in my TCA I have a field of type select with an mm relation.

I am using 'l10n_mode' => 'exclude' and 'l10n_display' => 'defaultAsReadonly' and I would expect to see all the relations of the original record in my translated one, too.
Instead I get only one entry in the select field. Exactly that one with the id of how many relations are in the original record.
This is propably because the mm relation is not resolved in the translated record, but the value of the mm-field of the original record is taken (which is the count of relations).

For now i am not using l10n_display anymore, only l10n_mode.

Thanks and regards,
Thomas