[TASK] Check t3_origuid field in DataHandler functional tests

The value of the t3_origuid is now checked in Datahandler
functional tests.

Releases: master, 7.6
Resolves: #78303
Change-Id: I8f47ecf3cc6e297cd5e01e07f724b75720e69fe2
Reviewed-on: https://review.typo3.org/50232


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>