Bundling delete mutations with Promise.all doesn't work after 15.1.3 release

Describe the bug

This was working on version 15.1.2:

const { mutate: deleteExample } = useMutate({
    verb: 'DELETE',
    path: `/examples`,
});

Promise.all(selection.map(id => deleteExample(id))).then(() => {
    console.log('success')
});

In version >= 15.1.3, this results in all requests being canceled.

To Reproduce Just bundle 2 or more delete mutations inside Promise.all.

Expected behavior All DELETE requests should be successful and Promise.all should be resolved.

[mpotomin]

I guess the original idea was that restful-react intentionally has the cancellation policy baked in: if any of the props change -> previous request cancelled -> new request fired. Such behaviour seems legit to me and useful for most use cases.

It could indeed be a nice additional feature though: separate flag to disable request cancellation.

[dcruzin]

It works! Also, congrats on this awesome project. Great time saver!