[EIP 4337] Withdrawing tokens from a contract to a smart account fails

[alko89]

Withdrawing native tokens from to a smart account throws unpredictable gas error. This is preventing our users to use 1Inch API to swap ERC tokens into Native tokens.

Digging more into this I've created a minimal code to reproduce the issue, by trying to unwrap WMATIC tokens for MATIC on Mumbai:

import { config } from "dotenv"
import { AbstractWallet, PrivateKeyWallet, SmartWallet, SmartWalletConfig } from "@thirdweb-dev/wallets";
import { Mumbai } from "@thirdweb-dev/chains";
import { ThirdwebSDK } from "@thirdweb-dev/sdk";
import { utils } from "ethers";
import { WETH_ABI } from "./ABI/weth";

config()

async function withdraw(wallet: AbstractWallet) {
  const sdkSmart = await ThirdwebSDK.fromWallet(wallet, Mumbai);

  const wmaticAddress = "0x9c3C9283D3e44854697Cd22D3Faa240Cfb032889";
  const wmaticContract = await sdkSmart.getContract(wmaticAddress, WETH_ABI)

  const data = await wmaticContract.call('withdraw', [utils.parseEther('0.1')])
  console.log('data: ', data)
}

async function createTransaction() {
  console.log("creating account")
  const privateKey = process.env.PRIVATE_KEY as string;
  const personalWallet = new PrivateKeyWallet(privateKey);
  console.log("personalWallet: ", await personalWallet.getAddress());

  const config: SmartWalletConfig = {
    chain: Mumbai,
    factoryAddress: process.env.FACTORY_ADDRESS as string,
    secretKey: process.env.SECRET_KEY as string,
    gasless: true, // enable or disable gasless transactions
  };

  const smartWallet = new SmartWallet(config);
  await smartWallet.connect({
    personalWallet,
  });
  console.log("smartWallet: ", await smartWallet.getAddress());
  
  console.log("Unwrapping with personal wallet")
  await withdraw(personalWallet)

  console.log("Unwrapping with smart wallet")
  await withdraw(smartWallet)
}

createTransaction()

I've tested this script with our version of contract factory (v1.4.0) and the latest one available (v1.5.3), which strangely enough throw a different error in this case:

Managed Account Factory v1.4.0

Reason: Error: gas required exceeds allowance

Managed Account Factory v1.5.3

Reason: execution reverted

[milaabl]

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