`submitting` with subscription stuck in `true`

[nfantone]

Are you submitting a bug report or a feature request?

Bug report.

What is the current behavior?

If setting subscription, under certain circumstances which seem to be related to the time the submit callback takes to complete, form.submitting is not reset. It will stay true even after the onSubmit async callback resolves.

What is the expected behavior?

form.submitting should always flip back to false when the promise-returning or async onSubmit callback resolves.

Sandbox Link

• Take any of the examples on the website, like this one.
• Comment the await sleep(300); call on L:10.
• Try submitting any values with both forms shown.
• Notice the difference between the top and bottom forms: "Submit" button on second form will remain disabled due to submitting.
• Re-adding the await sleep(300) call makes the behaviour go back to normal.

What's your environment?

• react-final-form: 6.5.2
• final-form: 4.20.1
• react: 17.0.1
• nodejs: v14.15.0

Running on macOS Catalina 10.15.7 (19H2).

[correaricardo]

Same here, does anyone know a solution different than unsubscribe?