[BUGFIX] Computed properties are queried in workspace context

This is a follow-up to issue #68643 to sanitize all places that
reuse the fields (including the computed properties) of a record.

Resolves: #66135
Releases: master, 7.6, 6.2
Change-Id: Ifb57193ff07e3d9ddae50568a0dce741f9aaf12d
Reviewed-on: https://review.typo3.org/45493


Reviewed-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>
Tested-by: Oliver Hader <oliver.hader@typo3.org>