CRASH load,save,load,save=Crash if images in footer

[alaindev]

This is:

Hello

PHPSpreadsheet CRASHes when 2 consuccessif load->Save if images are in headerFooterImages

I have an Excel-1 file as a template

load Excel-1=>save to Excel-2

load Excel-2 =>save to Excel-Final = CRASH since footer image is no longer found in zip!

• [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?
No Exception

### What is the current behavior?
ThrowException in 

### What are the steps to reproduce?

Please provide a [Minimal, Complete, and Verifiable example](https://stackoverflow.com/help/mcve) of code that exhibits the issue without relying on an external Excel file or a web server:

<?php

require 'includes/modules/autoload.php';

// Create new Spreadsheet object
$spreadsheet = \PhpOffice\PhpSpreadsheet\IOFactory::load("DEBUG.xlsx");
			$filewriter = \PhpOffice\PhpSpreadsheet\IOFactory::createWriter($spreadsheet , "Xlsx");
			$filewriter->setIncludeCharts(true);
			$filewriter->save("EXCEL2.xlsx");

$spread2sheet = \PhpOffice\PhpSpreadsheet\IOFactory::load("EXCEL2.xlsx");
			$filewriter2 = \PhpOffice\PhpSpreadsheet\IOFactory::createWriter($spread2sheet , "Xlsx");
			$filewriter2->setIncludeCharts(true);
			$filewriter2->save("EXCELFINAL.xlsx"); // => CRASH if image in Footer

exit();
?>

### What features do you think are causing the issue

- [ ] Reader
- [ X] 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?
All
[DEBUG.xlsx](https://github.com/PHPOffice/PhpSpreadsheet/files/9802175/DEBUG.xlsx)

[oleibman]

This appears to be a problem of ancient vintage. The code above with the supplied file works with PHPExcel, and with PhpSpreadsheet through version 1.2.1. It fails starting with version 1.3.0 (June 9, 2018).

[alaindev]

Right : tested current version is "phpoffice/phpspreadsheet": "^1.16",