cubicweb #3406930 formfields.CompoundField does not handle multipart properly [validation pending]
If there's a FileField within a CompoundField, the latter will not have the enctype multipart set, despite the FileField needs it.
CompoundField should inspect its children fields to determine whether it needs multipart.
|closed by||#6012cf57f48e [web/formfields] Make CompoundField inherit needs_multipart from its subfields|
|patch||[web/formfields] Make CompoundField inherit needs_multipart from its subfields [applied]|