During system validation testing of DocuSign, we observed that a single signer is able to select different roles within the same document. In other words, when the signer has more than one signature field in the document, they can choose to act as "author," "reviewer," and "approver" using the Part 11 Module. I suggest adjusting the module configuration so that once a role (authorship, review, or approval) has been selected, the same signer cannot select another role within the same document.
Additionally, we opened a support ticket (16067933), and the feedback received indicated that this configuration is currently not possible. The recommendation was to submit an idea (improvement opportunity) through the platform.