Imagine a form view with a one2many editable list, containing a
required field. Open an existing record, s.t. in the one2many
there's already a sub record. Modify that subrecord, s.t. the
required field is unset (e.g. empty it, or it can be unset from
the beginning, but then modify another field). Then save the main
record. Before this commit, the record could be saved.
In this situation, the modified one2many record isn't valid, so
we shouldn't be allowed to save. The view should remain in edition
and the invalid field should be indicated.
This commit fixes this issue.
closesodoo/odoo#100059
Signed-off-by: Géry Debongnie <ged@odoo.com>