useForm `mutationError` property instead of `onMutationError` function?

In the

useForm

useForm

hook, there is an

onMutationError

onMutationError

prop. There is also an

errorNotification

errorNotification

prop. But I can't see any state based property for the presence of an error after the mutation. I don't want to use

errorNotification

errorNotification

to trigger a Toast, I want to show a banner on my page instead. Do I have to manually maintain a

mutationError

mutationError

state in the

onMutationError

onMutationError

function? That means I'll also need to handle clearing it onSubmit, etc. I'd prefer if there was an exposed

mutationError

mutationError

or similar property I could access directly...