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가끔 이벤트 수신 순서가 바뀌는 경우가 존재.
키움 명세서에도 이벤트 순서가 바뀔 수 있다고 명세 되어 있습니다.
처리 완료 chenjan 데이터를 받을 떄까지 최대 5번 확인합니다.
그 안에 키가 있다면 정상처리 그렇지 않다면 이전과 같이 에러를 발생시킵니다.