Operator drove the expired row 1000000155 (res 158023, 93 RW) in FIFA 17 with the
candidate deployed: the row was still actionable, Return to Club was offered, and
it worked — "the card is back in my club".
Server-verified durable afterwards, which is what a fresh session reconstructs:
/tradePile total 0 with zero rows, /tradePile/counts all zero, the card present in
/club (1965 -> 1966 items, itemState "free"), zero duplicate ids, no stale active
listing anywhere in the store (both rows cancelled), and the ended auction
projecting as `closed` (4) on /trade/status. Fix A intact: zero `inactive` rows.
So `listFS` -> `forSale` is protocol-correct AND behaviour-preserving on the path
that matters, and `listFS` is gone from production serialization.
Also worth recording what the result rules out: CARD_OFFERSTATE is NOT a gate term
that requires -1. Every actionable row we had ever seen carried itemState -1, which
looked like a possible client rule; it was a coincidence of our own invalid token.
An expired row decoding CARD_OFFERSTATE = 5 stayed actionable.
Deliberately NOT claimed: anything about the Flash action gate itself. STATE and
the RESERVEDPRICE/MAX_CREDITS pair are untouched and still confounded, so the gate
remains Category C / STRONGLY SUPPORTED / not proven, and AVM1 disassembly of
tradepile.isInActiveAuction is still the separate next investigation.
One gap left open honestly: no ACTIVE seller row existed during the session, so
active-row rendering under `forSale` is unverified. /transfermarket has always
emitted `forSale` on active rows, so it is expected-safe, but it has not been seen.
Single-field protocol-correctness fix, deployed as a candidate for a live A/B.
`itemData.itemState: "listFS"` on the seller's own auction rows is not a FIFA 17
token at all: zero occurrences in `CardsDLL_Win64_retail.dll` (md5
4de3493131d7d2ff7f8b360c5ac9b655), zero in 4.26 GiB of live client memory, and it
decodes to -1 through `FUN_180166660` — so the client was handed an unrecognised
`CARD_OFFERSTATE`. FIFA 17's value for an item offered for sale is `forSale` (5),
from the 12-row table at 0x180229cc0.
Changed only where the invalid token was emitted: `handle_market_query`
(GET …/tradePile) and `handle_market_status` (GET …/trade/status). The market
search path already emitted `forSale` and is untouched — which is also why the
risk here was lower than it looked: the client has been decoding `forSale` on a
live route all along, and only the seller's own pile carried the bad value.
Wire A/B on the same expired row: EXACTLY one field differs. tradeId, tradeState,
expires, startingBid, buyNowPrice, currentBid, bidState, sellerName,
sellerEstablished, watched, coinsProcessed, the twelve-atom count and the whole
itemData card are byte-identical; coins unchanged at 29,843,976; Fix A's zero
`inactive` rows intact.
The differential asserted PARITY on this field and therefore passed while BOTH
sides were wrong — the exact mechanism by which the defect survived every run.
`market query tradePile` is now DIFFERENT-BY-DESIGN, pinning oracle == "listFS"
and rust == "forSale" so the divergence cannot silently close again. Where the
FIFA 17 binary contradicts the Python oracle, the binary wins.
Gates: 126 host tests, 214 adapter tests, fmt clean, clippy clean.
NOT claimed: that this preserves the list -> expire -> Return-to-Club lifecycle.
That needs an operator FIFA 17 session and has NOT been observed yet. Also not
claimed: anything about the Flash action gate — `CARD_OFFERSTATE` is one of three
still-confounded candidates and this change does not test it. Revert is one line
if the live test fails.
funman300