turbo: form with multiple submit buttons, clicked button is lost

When you add a ‘name’ attribute on a <button>, that name is submitted in the form data.

You can use this to detect which button is clicked if you have multiple submit buttons on a form.

Turbo seems to remove this, breaking this functionality.

<form name="myform">
  <input type="email" name="myform[email]" />
  <button type="submit" name="myform[prev]">Previous</button>
  <button type="submit" name="myform[next]">Next</button>
</form>

On a normal browser submit, I see this as data submitted in the network-inspector (if I click the ‘next’ button):

myform%5Bemail%5D=test%40test.com&myform%5Bnext%5D=

But with Turbo active, I see this: myform%5Bemail%5D=test%40test.com