Error on export xlsx when DataValidation

[ghost]

This is:

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

What is the expected behavior?

What is the current behavior?

What are the steps to reproduce?

$spreadsheet = new Spreadsheet();
$sheet = $spreadsheet->getActiveSheet();
$sheet = $spreadsheet->getSheet(0);
$validation = $sheet->getCell('B2')->getDataValidation();
$validation->setType(\PhpOffice\PhpSpreadsheet\Cell\DataValidation::TYPE_LIST);
$validation->setFormula1('"A, B, C, D"');
$validation->setError('Select one from the drop down list.');

$writer = new Xlsx($spreadsheet);
$name = str_replace('.','',str_replace(' ', '',microtime().date('Y h'))).'.xlsx';
$path = 'arquivos/modelo_planilha/'.$name;
$writer->save($path);

Which versions of PhpSpreadsheet and PHP are affected?

PHP: 7.3
PhpSpreadsheet : 1.19

[oleibman]

Closed as duplicate of #2368, for which there are as-yet-unmerged PRs which you might be able to test.