Meta's ruling 2026-11-11. The OIDC issuer (the chat tier) now requires a live
receipt for TrainingNotice.Version: a refused authorize redirects to the consent
page with the parked request as returnUrl; token and userinfo re-read the receipt;
the back-channel reconciler ends sessions of accounts whose receipt is gone.
Notice relabelled version 1 with a pinned hash; docs add a Before deploy step
(clear ConsentReceipts), deploy and smoke notes.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
