genProof: fromBlock is always 0

[yuetloo]

Prerequisites

Please answer the following questions for yourself before submitting an issue.

• I am not running a deprecated version
• I checked the documentation and found no answer
• I checked to make sure that this issue has not already been filed

Expected Behavior

genProofs() should take the startBlock argument value if provided

Current Behavior

As seen in this line, fromBlock is set to 0 if transactionHash is not provided
https://github.com/privacy-scaling-explorations/maci/blob/dev/cli/ts/commands/genProofs.ts#L262C32-L263C1

    let fromBlock = startBlock ? Number(startBlock) : 0;
    fromBlock = transactionHash
      ? await signer.provider!.getTransaction(transactionHash).then((tx) => tx?.blockNumber ?? 0)
      : 0;

Failure Information

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Steps to Reproduce

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1. step 1
2. step 2
3. you get it...

Context

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• MACI version:
• Firmware Version:
• Operating System:
• SDK version:
• Toolchain version:

Failure Logs

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