Uploading multiple files in files section - incorrect sort number

[janherman]

Description

I have a files section with manual sorting enabled. In Kirby 3, when I upload multiple files, a correct sort number is inserted in file’s content file. That means the first uploaded file gets number 1, the second number 2 etc.

However, when I try the same in Kirby 4 (4.1.2), all files get the same sort number (it seems like the resulting sort number follows the formula = number of files + 1). After manually rearranging some of the files, those affected files get a new sort number. The rest remain untouched.

Expected behavior
Each file should get a correct sort number.

To reproduce

I used clean plainkit with files section in site.yml:

title: Site

sections:
  pages:
    type: pages
  files:
    type: files
    label: "Testing files"

I uploaded three images at once. All images get the same sorting number. In this case it is number 4.

Your setup

Kirby Version: 4.1.2

Your system

• Device: Laptop
• OS: Windows 10
• Browser: Mozilla Firefox
• Version: 125.0b8