[TYPO3-dev] Checkbox-viewhelper doesn't handle ObjectStorages correctly regarding object-creation

[Philipp Schiffmann]

Hi Michael,

I had the same problem a couple of weeks ago. The error is already reported
twice in forge and there's a patch in gerrit:
https://review.typo3.org/#/c/30756/

Or you simply assign a new object to your form:
$this->view->assign('myNewObject', new \My\Ext\Domain\Model\MyModel());

Cheers,
Philipp