FieldArray record level async validation not working

[tedeschia]

Are you submitting a bug report or a feature request?

Bug report

What is the current behavior?

When using record level validation and the result contains array level errors (with [ARRAY_ERROR] index), the array errors are not present in FieldArray meta.error.

What is the expected behavior?

Array level errors in async record validation must be present in the meta.error field

Sandbox Link

https://codesandbox.io/s/react-final-form-array-field-level-validation-forked-webyqs?file=/index.js
there are two forms with record level validation. the first one with async validation showing the issue, and the second one with the same validation but sync, working.

What's your environment?

FF 4.20.0

Other information

[gertdreyer]

This is a bug willing to accept a PR that fixes this.