[BUGFIX] Prevent undefined array key warning in DatabaseRecordList

Resolves: #99380
Releases: main, 11.5
Change-Id: I44a4a805b4848700e30ed7127a6da62c1f4cfdde
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/77138


Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Oliver Bartsch <bo@cedev.de>