[TASK] Doctrine: Migrate RelationHandler
Change-Id: I37c6d69e96becb633589ad56d9763ad92ac4c070 Resolves: #77565 Releases: master Reviewed-on: https://review.typo3.org/49530 Tested-by:Bamboo TYPO3com <info@typo3.com> Reviewed-by:
Wouter Wolters <typo3@wouterwolters.nl> Tested-by:
Wouter Wolters <typo3@wouterwolters.nl> Reviewed-by:
Benni Mack <benni@typo3.org> Tested-by:
Benni Mack <benni@typo3.org>