Remove mutator does not remove the correct field

[JVallius]

Are you submitting a bug report or a feature request?

Bug report

What is the current behavior?

Removing a field using remove mutator does not remove the correct field from the screen, if the fields are re-arranged using move mutator before removing.

What is the expected behavior?

Correct field is removed from the screen

Sandbox Link

To reproduce the bug:
https://codesandbox.io/s/final-form-arrays-bug-x17sb

1. Create two customers => (order: 1,2)
2. Reorded customers by dragging => (order: 2,1)
3. Remove Customer#2 by clicking red cross
4. Customer#1 is removed from the screen instead of Customer#2

What's your environment?

The bug can be reproduced using final-form-arrays version from 1.2.0 to 3.0.2
Version 1.1.2 is working as expected

"final-form": "4.18.7",
"final-form-arrays": "3.0.2",
"react": "16.12.0",
"react-beautiful-dnd": "13.0.0",
"react-dom": "16.12.0",
"react-final-form": "6.3.5",
"react-final-form-arrays": "3.1.0",

Other information

Final Form state seems to be updated correctly (as seen in sandbox example). But somehow Field components doesn't get updated with those values.