message: Check the validity of index in SearchResultListModel::data()
diff: @@ -48,7 +48,7 @@ public:
  }
  QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const
  {
  - if (index.row() >= (int)items_.size())
  + if (!index.isValid() || index.row() >= (int)items_.size())
  return QVariant();
  return items_[index.row()]->data(role);
  }
  