message: Hoist hdPath out of loop in RMG
diff: @@ -157,11 +157,12 @@ export class Rmg extends AbstractUtxoCoin {
  const keychain = prova.HDNode.fromBase58(userPrv, this.network);
  const signatureIssues = [];
  + const keychainHdPath = hdPath(keychain);
  for (let index = 0; index < transaction.ins.length; ++index) {
  const currentUnspent = txPrebuild.txInfo.unspents[index];
  const path = 'm/0/0/' + currentUnspent.chain + '/' + currentUnspent.index;
  - const privKey = hdPath(keychain).deriveKey(path);
  + const privKey = keychainHdPath.deriveKey(path);
  const currentSignatureIssue: any = {
  inputIndex: index,
  