[BUGFIX] Workspaces: handle TCA without transOrigPointerField

'transOrigPointerField' may not be set for a table

Resolves: #102190
Releases: main, 12.4, 11.5
Change-Id: I79febf5d99774b5e22d03f42f9088c00fa98dfc4
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/81444


Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>