Form doesn't change pristine value after removing second item

[gregorysl]

Are you submitting a bug report or a feature request?

Bug report

What is the current behavior?

When initial values are set with minimum 2 entries, clicking remove on second item doesn't change pristine state of form

What is the expected behavior?

Form shouldn't be pristine, allowing me to save changes

Sandbox Link

Taken from readme simple example and added only following part

      initialValues={{
        customers: [
          {
            firstName: "John",
            lastName: "Doe"
          },
          {
            firstName: "Henry",
            lastName: "Ford"
          }
        ]
      }}

https://codesandbox.io/s/react-final-form-field-arrays-eutnd

What's your environment?

 "final-form": "4.12.0",
    "final-form-arrays": "1.1.2",
    "react": "16.8.6",
    "react-dom": "16.8.6",
    "react-final-form": "4.1.0",
    "react-final-form-arrays": "2.0.3",

Tested on Win10 Chrome

Other information

[snrkulagin]

Having the same issue

[dim2k2006]

The same for me (

Does anyone have a solution?

[gregorysl]

@erikras any idea?