Error when cloning sheet inside XLSX with a table

[AnzeBlaBla]

This is:

- [x] a bug report
- [ ] a feature request
- [x] **not** a usage question (ask them on https://stackoverflow.com/questions/tagged/phpspreadsheet or https://gitter.im/PHPOffice/PhpSpreadsheet)

What is the expected behavior?

When using clone on a sheet, it should clone it successfully.

What is the current behavior?

When cloning a sheet that contains a table, it throws the error: Error: Spreadsheet objects cannot be serialized

What are the steps to reproduce?

An XLSX file with a table (example attached), load it into PhpSpreadsheet and use clone on the sheet that contains the table.

Please provide a Minimal, Complete, and Verifiable example of code that exhibits the issue without relying on an external Excel file or a web server:

<?php

require __DIR__ . '/vendor/autoload.php';

// Create new Spreadsheet object
$spreadsheet = new \PhpOffice\PhpSpreadsheet\Spreadsheet();

$sheet = clone $spreadsheet->getSheetByName('Test'); // Errors here
$sheet->setTitle('test2');
$spreadsheet->addSheet($sheet);

Example file:

example.xlsx

What features do you think are causing the issue

• Reader

• Writer

• Styles

• Data Validations

• Formula Calculations

• Charts

• AutoFilter

• Form Elements

Does an issue affect all spreadsheet file formats? If not, which formats are affected?

XLSX

Which versions of PhpSpreadsheet and PHP are affected?

I'm using 1.28.0, didn't test any other.