Xml does not recognize data validations that references another sheet

[diego-sorribas]

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?

Load the data validations that references lists of another sheet, I see that when the Xlsx reader on line 755 read the document it does not load the data validations but they are in the document content.

What is the current behavior?

It is not loading the data validations

What are the steps to reproduce?

Create a xlsx file with a column with data validation that reference a list of another sheet, then load it in your code.

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

 $reader = IOFactory::createReader('Xlsx');
 return $reader->load('template.xlsx');

Which versions of PhpSpreadsheet and PHP are affected?

phpspreadsheet - 1.4.0
php - 7.2

[diego-sorribas]

Debugging it I see that the data Validations comes into extLst node but the reader only get de uri of it

[diego-sorribas]

I found another issue: #388