function testItIgnoresNewTagsIfCannotCreate()
 {
     $record = new TagFieldTestBlogPost();
     $record->write();
     $tag = TagFieldTestBlogTag::get()->filter('Title', 'Tag1')->first();
     $field = new TagField('Tags', '', new DataList('TagFieldTestBlogTag'), array($tag->ID, 'Tag3'));
     $field->setCanCreate(false);
     $field->saveInto($record);
     /**
      * @var TagFieldTestBlogPost $record
      */
     $record = DataObject::get_by_id('TagFieldTestBlogPost', $record->ID);
     $this->compareExpectedAndActualTags(array('Tag1'), $record);
 }