message: qt, refactor: Keep PSBTOperationsDialog in the main event loop
diff: @@ -228,10 +228,9 @@ void WalletFrame::gotoLoadPSBT(bool from_clipboard)
  return;
  }
  - PSBTOperationsDialog* dlg = new PSBTOperationsDialog(this, currentWalletModel(), clientModel);
  + auto dlg = new PSBTOperationsDialog(this, currentWalletModel(), clientModel);
  dlg->openWithPSBT(psbtx);
  - dlg->setAttribute(Qt::WA_DeleteOnClose);
  - dlg->exec();
  + GUIUtil::ShowModalDialogAndDeleteOnClose(dlg);
  }
  void WalletFrame::encryptWallet()
  