New Form Builder--File Attachment fields-no revisions??

In the old forms, for a file attachment field, you could add numerous new revisions.  You could then see all of the old revisions and even revert back to an older version.  The new form builder seems to only allow one document per file attachment field (despite the field settings allowing us to 'Keep all revisions' or 'Keep the last X revisions') .  Am I missing something?

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Jessica Feauto
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