Multi-file upload uploads same file n times

[glalaj]

Scope

I have a file upload field in a form where I enabled multiple upload adding multiple: true

 nga.field('epg_file','file')
    .uploadInformation({ 'url': '/file-upload/single-file/epg/epg_file', 'accept': 'image/*, .csv, text/xml, application/vnd.ms-excel, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'apifilename': 'result', 'multiple': 'true'})

When the form is submitted, it makes a (post) request to this API: /api/process_file

Prerequisites

• I am running a really old version (0.0.2). However, this is not the moment for updating the version, especially if I have no guarantee that it will fix the issue I am facing.

Description

When using multiple file upload to upload n files, the http request parameter containing the names of the files uploaded contains the last file n times instead of the names of all files. This does not happen every single time, but it does happen most of it (~90% of the time). I was unable to find a pattern of when the upload happens correctly.

Steps to Reproduce

1. I click on 'Browse' button and select several files. Let's say I select 3 files, test1.csv test2.csv and test3.csv.
2. After I click on submit, all files are uploaded. A request is made towards /api/process_file, with the form data.

Expected behavior: The epg_file param of the request is 'test1.csv, test2.csv, test3.csv'

Actual behavior: The epg_file param of the request is 'test3.csv, test3.csv, test3.csv'