Description

When calling debug_traceBlockByNumber for a block, and some transaction from the block hasn't made any calls, then null would be returned for that transaction. For example:

{
    "method": "debug_traceBlockByNumber",
    "params": [
        "0x5067CB1",
        {
            "tracer":"callTracer"
        }
    ],
    "id": 1,
    "jsonrpc": "2.0"
}

returns
{"result":[{"txHash":"0xa74c140aedec484c5c6cb559aecd75386d15cbafcc3e55c90d5302adbea86337","result":null}],"jsonrpc":"2.0","id":27}

The result be the root transaction object with an empty calls array instead of null, for example:

{"result: 
  [{
    "txHash":"0xa74c140aedec484c5c6cb559aecd75386d15cbafcc3e55c90d5302adbea86337",
    "result":{
        "type": "CALL",
        "from": "0x...",
        "to": "0x...",
        "input": "0x",
        "output": "0x",
        "gas": "0x0",
        "gasUsed": "0x0",
        "value": "0x0",
        "calls": []
    }}],"jsonrpc":"2.0","id":27}

An example response from Quicknode for such a transaction (Geth/Alchemy also adhere):

Steps to reproduce

1. Try to call debug_traceBlockByNumber for a block containing such a transaction, for example 0x5067CB1
2. Observe the result

Additional context

No response

Hedera network

No response

Version

0.71.0

Operating system

None