Allow Visibility Adjustments for Completed Signers in Envelope Corrections

When correcting an envelope, if a document originally hidden from a completed signer no longer has fields assigned to a later signer (e.g. fields were removed due to a different document version being added to the envelope), it becomes visible to all recipients. While visibility settings can then be adjusted for those still in the signing order, they remain locked for those who have already signed. The only workaround is keeping a placeholder field on the document. We request an enhancement to allow visibility adjustments for completed signers when correcting an envelope, ensuring internal documents remain restricted from external recipients without requiring unnecessary fields or voiding the envelope.