[BUGFIX] Set correct record information for SaveAndNew

This patch ensures the correct record information for saving and
inserting a new record even in a workspace.

Resolves: #70542
Releases: master, 7.6
Change-Id: I3b88b08a55600f8c7bc5e2c2f05444624181db83
Reviewed-on: https://review.typo3.org/47153


Reviewed-by: Nicole Cordes <typo3@cordes.co>
Tested-by: Nicole Cordes <typo3@cordes.co>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>