The FIFA 17 client gates challenge re-entry on timesCompleted, not on the
repeatable flag: a nonzero count renders the tile COMPLETED and refuses re-entry
even when repeatable=true. So a repeatable challenge now always projects
timesCompleted=0 (challenges_body) and its set as challengesCompletedCount=0
(sets_body); a non-repeatable challenge keeps its true count and stays locked
once completed. Core keeps the authoritative completion record — economy is
unaffected; this is presentation only.
Live-proven on the retail client 2026-08-18: a completed repeatable Bronze
Upgrade now re-opens for a fresh submit instead of blocking. Regression test
repeatable_completed_challenge_stays_enterable added; adapter + full host suite
(incl. differential and the concurrency race) green.
Retail Gate C captured PUT /sbs/challenge/101/squad: 23-slot players[] of
{index,itemData:{id,dream}} plus manager/chemistry/rating/formation siblings.
parse_wire_item_ids already handles it (players[].itemData.id, non-zero only);
update the stale "captures unavailable" note and add a verbatim regression test.