message: Fix behavior on Enter when no item is selected (linux)
diff: @@ -37,7 +37,13 @@ bool AutocompleteComboBox::eventFilter(QObject *o, QEvent *e) {
  return true;
  case Qt::Key_Enter:
  case Qt::Key_Return: {
  + if (listView->currentIndex().isValid()) {
  listView->keyPressEvent(ke);
  + }
  + else {
  + listView->hide();
  + emit returnPressed();
  + }
  return true;
  }
  case Qt::Key_Home:
  