[BUG]

[Uinelj]

Describe the bug
Wrong order of documents in split op

To Reproduce
Steps to reproduce the behavior:
split file in multiple splits

Expected behavior
part one has the firtst docs, and so on

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.