Async validation strange behaviour

[afitiskin]

I had a very strange bug on my project when I used async validation for fields. During form filling everything works without any issues, but when I submit the form I got Uncaught (in promise) error. I checked every line of my code and found that if I resolve async validating promise with some data redux-form treat it as an error and fail form submission.

As I see, the problem is here:

const handleErrors = rejected => errors => {
  if (errors && Object.keys(errors).length) {
    stop(errors)
    return errors
  } else if (rejected) {
    stop()
    throw new Error('Asynchronous validation promise was rejected without errors.')
  }
  stop()
  return Promise.resolve()
}

First if statements will not be not passed even if rejected is false. I don't know if it is a feature of a bug?

I forked the repo and added example of the problem.
Form works until you submit it with valid values, you will get error in the console.

[gustavohenke]

Closing due to inactivity.

In case you still have problems, please open a formal bug report/feature request/docs improvement request.
Otherwise, please ask for help at StackOverflow.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

[erikras]

Fix released in v7.4.0.