Changelog
- Mailbox.6609.md and ALL_PACKET_STRUCTURES_6609.txt listed entry 0x78 as the item UID and 0x7C as the seconds left; the client reads them the other way round
- State that the client empties its list when it sends a page request and appends every mode 0 page, so a page must answer exactly one request, and that mode 1 updates rows by UID
- Record that batch delete and batch claim are both answered with reply 7, that no notification refreshes the list, and the client functions behind each rule