What to do with a 404 on a submission replace="all"?

On reading the xforms-submit section of the specification, it states:
"For an error response nothing in the document is replaced, and submit
processing concludes after dispatching xforms-submit-error."
[http://www.w3.org/TR/xforms/index-all.html#submit-event]

I would mean that a 404 is an error response, so it seems clear that
we should dispatch xforms-submit-error and do nothing more. Is that
correct?

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... Allan