doc: leave some TODOs for sig verification, protov2 added some extra …

…checks, so need to use a hacky way to pass them for now

app/ante/evm/sig_checker.go

@@ -45,10 +45,12 @@ func (esvd EthSigVerificationDecorator) AnteHandle(ctx cosmos.Context, tx cosmos
 			return ctx, err
 		}
 
-		// set up the sender to the transaction field if not already
+		// sender bytes should be equal with the one defined on the message
 		if sender != common.Address(cosmos.MustAccAddressFromBech32(msgEthTx.From)) {
 			return ctx, errors.New("sender address does not match the one defined on the message")
 		}
+
+		// Need to overwrite the From field with EVM address for future use
 		msgEthTx.From = sender.Hex()
 	}
 

ethereum/rpc/tx.go

@@ -45,6 +45,8 @@ func (b *BackendImpl) SendTx(ctx context.Context, signedTx *ethtypes.Transaction
 	if err != nil {
 		return err
 	}
+	// FIXME: This is a temporary fix to set the From address in the transaction,
+	//        protoMsgV2 need this field to be set and the address must be a bech32 address
 	ethereumTx.From = sdktypes.AccAddress(from.Bytes()).String()
 
 	// Query params to use the EVM denomination

x/evm/types/tx_wrapper.go

@@ -149,6 +149,7 @@ func (msg *MsgEthereumTx) BuildTx(b client.TxBuilder, evmDenom string) (signing.
 
 	builder.SetExtensionOptions(option)
 
+	// FIXME: protoV2 message need msg.From, so we cannot leave it as empty anymore
 	// A valid msg should have empty `From`
 	//msg.From = ""