討論準化:Có

This page said that the character “𣎏” is the standard one for "Có", but why in BẢNG CHỮ HÁN NÔM CHUẨN THƯỜNG DÙNG use “固” to translate "Có" ? I just want to know if it was a mistake or you people change your idea

please reply here, or show me a way to contact you Thank you.