Radio button remains dirty after submit because initialValue does not update to newly saved value despite initialValue prop changing

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Are you submitting a bug report or a feature request?

Bug Report

What is the current behavior?

Submitting a form with 2 radio button <Field>s results in the radio button state being considered "dirty" after submit succeeds. The form's initialValues shows the old/previous value despite the initialValue prop on both radio button <Field>s being changed after the submit completes.

What is the expected behavior?

Given an initial form state of:

{ section-one: { radio-button: "A" } }

Given radio buttons initialized like so:
A) (selected)
B)

And a change by the user to:

A)
B) (selected)

Upon clicking "Submit", B would remain as the selected radio button, and the form's dirty state would be false because section-one.radio-button would not be considered dirty.

(Currently, it would be considered dirty because the initial[name] would show as being the "old" value instead of the newly saved one.)

Sandbox Link

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What's your environment?

[email protected]
[email protected]
Windows 10

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