Form submit without resetting in React 19

form.tsx

export function Form() {
  const [isPending, startTransition] = useTransition()
  return (
    <form
      onSubmit={(event) => {
        event.preventDefault()
        const formData = new FormData(event.currentTarget)
        startTransition(async () => {
          await someAction(formData)
        })
      }}
    >
      ...
    </form>
  )
}