[BUG] [BoltForms 4] Saving to content type not working properly

When saving a form to a content type the content type is saved correctly but two things happen:

- The content type is always set as published, no matter what default status is set on the contenttypes.yml file.
- If notifications are enabled the following error is thrown:

`
Twig_Error_Runtime in Template.php line 230:
An exception has been thrown during the rendering of a template ("Bolt\Extension\Bolt\BoltForms\Config\Form\FieldOptionsBag ") in "@BoltForms/email/_blocks.twig" at line 4.
`

Details
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- Relevant Bolt Version: [ 3.3 ]
- Install type: [ Composer install ]
- PHP version: [ 7.0 ]
- Used web server: [ Apache ]