update supersede func

[ncying]

PR Details

Description

update supersede function

Related Issue

Motivation and Context

separate roles of issuer and regulator

How Has This Been Tested

all unit test passed

Types of changes

• [x] function update

Checklist

• [x] My code follows the code style of this project.
• [x] All new and existing tests passed.

[ncying]

@Icermli plz update the unit test part and NFT v2 version

@twwu123 @Julianxa plz check the logic for tests