BUG: Cannot return an NFT with special classID

[giansalex]

After transfer via IBC an NFT that has a classID with special characters (e.g: p/0/1), I can't return it to the origin chain.

Environment

• OS: Ubuntu 20.04.4
• Software version: iris@1.4.1-gon-testnet

Steps to Reproduce

• Create collection with special chars and mint an NFT

iris tx nft issue disperze/0/1 
iris tx nft mint disperze/0/1 gonft001

• Transfer to JUNO

iris tx nft-transfer transfer nft-transfer channel-24 <receiver> disperze/0/1 gonft001

• Return to origin (IRIS)

MSG='{"send_nft": {"contract": "juno1stv6sk0mvku34fj2mqrlyru6683866n306mfv52tlugtl322zmks26kg7a", "token_id": "gonft001", "msg": "eyAicmVjZWl2ZX.....zF9IH0gfQ=="}}'

junod tx wasm execute <cw721-contract> "$MSG"

Expected and Actual Behavior

Expected: Recover the original NFT on IRIS
Actual: Error ibc/C99502011F102E8562678BB2FD928A7CC78E051C207DF6908C3F1E30BD9F1D5C: nft class does not exist

Additional Context

ClassID sent from JUNO chain: wasm.juno1stv6sk0mvku34fj2mqrlyru6683866n306mfv52tlugtl322zmks26kg7a/channel-89/disperze/0/1
but nft-transfer module is searching classID: "ibc/" + sha256("disperze/0/1") instead disperze/0/1

Txs
IRIS: https://gon.ping.pub/iris/tx/5210E17BB09FD3B3DDB77844C9D3E375182251275DA84F386925734FE3910D81
JUNO: https://blueprints.juno.giansalex.dev/#/transactions/5E7EAB3013FEA650ADB1B91D1A6F4FAD2DEF0BB66B7C7989FF11B67450EDFA58

go method:
https://github.com/bianjieai/nft-transfer/blob/v1.1.1-beta/types/trace.go#L64

[giansalex]

This bug also affects other IBC events, such as IBC Timeout, IBC Ack with error.