Order of xforms:revalidate and xforms:recalculate

Hi,

If I understand correctly the latest draft and more precisely chapter 11.3,
the following happens when a form control has a new value :

First, the model is revalidated, using the model item property isValid
(chapter11.3.16 point 2).
Then, the model is recalculated, and the model item property isValid gets
its new value(chapter 11.3.17).

Doesn't this mean that the validation uses inaccurate data, and thus
shouldn't the order of this events be switched ?

Regards,
Jérôme Nègre