[autoform] when building inlined-form view for a relation, consider related entities intead of other views by considering previous form-views, we may miss that there exists related entities but which are not editable. Closes #10495602

if not rql('CWConstraintType X WHERE X name "RQLUniqueConstraint"',
           ask_confirm=False):
    rql('INSERT CWConstraintType X: X name "RQLUniqueConstraint"',
        ask_confirm=False)