{
  "schema": "task-2635.expected.v2",
  "scenario": "sendfile_only_not_registered",
  "finalize_result": "fail",
  "registration_status": "SENDFILE_ONLY",
  "registration_intent": true,
  "registration_attempted": false,
  "registration_result_status": "SENDFILE_ONLY",
  "callback_delivery_status": "NOT_APPLICABLE",
  "collector_receipt_status": "NOT_APPLICABLE",
  "fail_closed": true,
  "fallback_cancel_signal": false,
  "collector_spawn_expected": false,
  "is_callback_complete": false,
  "fallback_decision_reason_contains": "status 'SENDFILE_ONLY' != REGISTERED",
  "callback_substitute_by_sendfile": false,
  "contradictions_expected": []
}