ContractId.fromEvmAddress(0, 0, 0xAddress) as parameter for setSupplyKey in TokenUpdateTransaction seems to save a different value

[mgarbs]

Problem

When using the SDK method ContractId.fromEvmAddress() to convert an EVM address into a Hedera ContractId for TokenUpdate transactions (specifically to set the supply key), the resulting value becomes 0.0.0. This behavior occurs even when providing a valid deployed contract’s EVM address.

Description

When using the SDK method ContractId.fromEvmAddress() to convert an EVM address into a Hedera ContractId for TokenUpdate transactions (specifically to set the supply key), the resulting value of the updated supply key becomes 0.0.0. This behavior occurs even when providing a valid deployed contract’s EVM address.

Steps to Reproduce

1. Deploy a smart contract to the Hedera network and retrieve the EVM address.
2. Use the following code to convert the EVM address to a ContractId:

const contractId = ContractId.fromEvmAddress(0, 0, deployedContract0xAddress);

3. Use the generated ContractId in a TokenUpdateTransaction to set the supply key:

    const transaction = new TokenUpdateTransaction()
        .setTokenId("0.0.5059257")
        .setSupplyKey(contractId);

4. Observe that the supply key becomes 0.0.0 instead of the expected 0.0.xxxx.

Solution

I do not know what the best solution would be, but this is the way I was able to set the contract as the supply key

• I queried the mirror node with the evm address and get the 0.0.xxx contractID
• I used this value for setSupplyKey in TokenUpdateTransaction
• Tx SUCCESS and it is the expected value

Alternatives

It would be nice if I could just pass something like const contractId = ContractId.fromEvmAddress(0, 0, deployedContract0xAddress) or PublicKey.fromStringECDSA(deployedContract0xAddress)