message: fix bug where we aren't returning newly created merchant safe address
diff: @@ -203,9 +203,9 @@ export default class RevenuePool {
  }
  private async getMerchantSafeFromTxn(txnHash: string): Promise<string> {
  - let revenuePoolAddress = await getAddress('revenuePool', this.layer2Web3);
  + let merchantManager = await getAddress('merchantManager', this.layer2Web3);
  let txnReceipt = await waitUntilTransactionMined(this.layer2Web3, txnHash);
  - return getParamsFromEvent(this.layer2Web3, txnReceipt, this.createMerchantEventABI(), revenuePoolAddress)[0]
  + return getParamsFromEvent(this.layer2Web3, txnReceipt, this.createMerchantEventABI(), merchantManager)[0]
  ?.merchantSafe;
  }
  