Event with empty data gives exception on decoding

[TechGeorgii]

Hey guys!

Describe the bug
Event with empty data gives exception on decoding

To Reproduce
A valid log event https://etherscan.io/tx/0xc3aa108b0e1b99071e31be022be84e8a7e7ecc05d0525ac9d2395b197c4d9d64#eventlog
throws error on decoding.

import { event, indexed } from '@subsquid/evm-abi';

const transferEvent = event(
  '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
  'Transfer(address,address,uint256)',
  { from: indexed(p.address), to: indexed(p.address), value: p.uint256 },
);

// throws error
const res = transferEvent.decode({
  data: '0x',
  topics: [
    '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
    '0x0000000000000000000000000000000dac17f958d2ee523a2206206994597c13',
    '0x000000000000000000000000ac30bc0273a8e974b6f8217738f9edc7c74982d0',
  ],
});

Expected behavior
value should be decoded as 0 – data is from valid event https://etherscan.io/tx/0xc3aa108b0e1b99071e31be022be84e8a7e7ecc05d0525ac9d2395b197c4d9d64#eventlog

Environment (please complete the following information):

• specify the version of the core packages (@subsquid/cli, @subsquid/substrate-processor, ...)
  @subsquid/evm-abi": 0.3.1

[belopash]

No, it is not valid event, etherscan just decodes it in a "relaxed" mode. Valid data should look like 0x0000000000000000000000000000000000000000000000000000000000000000

[TechGeorgii]

No, it is not valid event, etherscan just decodes it in a "relaxed" mode. Valid data should look like 0x0000000000000000000000000000000000000000000000000000000000000000

Agree this should be correct zero, but that is data coming from portal and it is identical to what's on etherscan. Maybe we should decode in "relaxed" mode as well?