TYPO3 Core

Since the 6.2 beta6 update the following code doesn't work anymore (I am trying to map the Category model in my extbase plugin):

My typoscript setup (also tried using "recordType" with my class name or TYPO3\CMS\Extbase\Domain\Model\Category):
plugin.tx_myext.persistence.classes{
Vendor/MyExt/Domain/Model/Category{
mapping{
tableName = sys_category
}
}
}

My (empty) model:
class Category extends \TYPO3\CMS\Extbase\Domain\Model\Category{
}

Now when I'm passing the model to an action like this:
/**

• myAction
• @param \Vendor\MyExt\Domain\Model\Category $category category
  */
  public function myAction( \Vendor\MyExt\Domain\Model\Category $category=NULL ){
  }

I get the following error (even if I use the @dontvalidate annotation):
"An error occurred while trying to call Vendor\MyExt\Controller\MyController->myAction()"

Before (in 6.2beta5) everything worked as expected. Unfortunately I couldn't find a solution to this problem.