XHTML 1.0 strict compliance of FORM objects (hidden fields)
FORM objects generate hidden fields that are not enclosed by any other block-level tags. This is not legal according to XHTML 1.0 strict, so e.g. pages with a mailform content object fail to validate. Attached is a patch to solve this problem (it just adds a <div> around the hidden fields block).
(issue imported from #M678)