Excel with protection, black cells after edit

[bbinotto]

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?

Open TestCaseAnonym.xlsx and write into unprotected cell should not change style of other cells.

What is the current behavior?

Open
TestCaseAnonym.xlsx
, write into unprotected cell, save to TestCaseOutput.xlsx.
Lots of cells (probalbly all protecte?) are now unreadable because they have a black background color.

What are the steps to reproduce?

composer install
php -f TestCase.php
View TestCaseOutput.xlsx.

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
include_once "vendor/autoload.php";

use PhpOffice\PhpSpreadsheet\IOFactory;
class TestCase
{
    /**
     * @throws \PhpOffice\PhpSpreadsheet\Reader\Exception
     * @throws \PhpOffice\PhpSpreadsheet\Writer\Exception
     * @throws \PhpOffice\PhpSpreadsheet\Exception
     */
    public static function Exec(){
            $objReader = IOFactory::createReader("Xlsx");
            $excel = $objReader->load("TestCaseAnonym.xlsx");
            $excel->setActiveSheetIndex(1);
            $activeSheet = $excel->getActiveSheet();
            $activeSheet->SetCellValue("J21", utf8_encode("2"));
            $objWriter = IOFactory::createWriter($excel,"Xlsx");
            $objWriter->save("TestCaseOutput.xlsx");
    }
}

TestCase::Exec();

Which versions of PhpSpreadsheet and PHP are affected?

1.10.1
I have the same issue with the old PhpExcel.
php 7.2

[bbinotto]

Complete example
MinimalExcel.zip

[bbinotto]

I found that Xlsx.php@1624 causes this:
//$docStyle->getFill()->getStartColor()->setARGB('FF000000');

Anyone has an idea what the side effects are if we just remove this?

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.
If this is still an issue for you, please try to help by debugging it further and sharing your results.
Thank you for your contributions.

[plagiatmakc]

I found that Xlsx.php@1624 causes this:
//$docStyle->getFill()->getStartColor()->setARGB('FF000000');

Anyone has an idea what the side effects are if we just remove this?

Xlsx.php@1624
I think that this is better way:
$docStyle->getFill()->setFillType(\PhpOffice\PhpSpreadsheet\Style\Fill::FILL_NONE);
instead

//$docStyle->getFill()->getStartColor()->setARGB('FF000000');

because this way the background becomes transparent, and in your case it’s just white.

Sorry for my english....