Crashed when expanded cell last cell at scrollCellIfNeeded() method in DataSourceProvider.swift

[kunalword]

When expanding cells one after one from first to the last cell. At the last cell Crashed.
if we have three cells when trying to expand at 3 cell that indexPath { 0 : 0, 1: 4}

private func scrollCellIfNeeded(atIndexPath indexPath: IndexPath, _ tableView: UITableView) {

    let cellRect = tableView.rectForRow(at: indexPath)
    
    // Scroll to the cell in case of not being visible
    if !tableView.bounds.contains(cellRect) {
        tableView.scrollToRow(at: indexPath, at: .bottom, animated: true) // Crashed here
    }
} 

private func update(_ tableView: UITableView, _ item: DataSource.Item?, _ currentPosition: Int, _ indexPath: IndexPath, _ parentIndex: Int) {

}

due to instance numberOfChildren is an increased value by one