Validation attr on instance to control strict/lax/skip
From W3C XForms Group Wiki (Public)
Would be nice to be able to say whether the schemas applied to an instance are applied with strict or lax validation. Also would be nice to say that schemas are not applies at all, e.g.
<instance validation="strict|lax|skip" ...>
XSLT 2.0 has something much like this, which it can apply to a whole result tree (analogous to an XForms instance) or to *any* element.
Therefore, it might be good to consider whether validation should be a MIP, e.g.
<bind nodeset="some/node" validation="lax"/>