Suggested migration regarding config.tx_extbase.objects does not work for Models mapped using the PropertyMapper
This refers to the changes from https://review.typo3.org/c/58288/
Also different sets of injection methods or properties than the original class will not work.
We should recommend to use
\TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(\TYPO3\CMS\Extbase\Object\Container\Container::class)->registerImplementation($oldClassName, $newClassName) in