Probable bug on Validate::numeric

            Field::inst( 'am_templates.title' )
                ->validator( Validate::numeric(ValidateOptions::inst() ->message('Numeric only') ) )

Leads to:

Catchable fatal error:  Object of class DataTables\Editor\ValidateOptions could not be converted to string in /datatables/php/lib/Editor/Validate.php on line 422

Is this a bug?