public function testFieldAccess2()
{
$m = new Model(['strict_field_check' => false]);
$this->assertEquals(false, isset($m['name']));
$m->set(['name' => 5]);
$this->assertEquals(true, isset($m['name']));
$this->assertEquals(5, $m['name']);
$m['name'] = null;
$this->assertEquals(false, isset($m['name']));
$m = new Model();
$n = $m->addField('name');
$m->set($n, 5);
$m->set($n, 5);
$this->assertEquals(5, $m['name']);
}