[BUGFIX] Include pid in field list of BU::getCommonSelectFields

Add the pid to the list of fields which should always be
retrieved when selecting a record. This especially avoid
a PHP warning in FormEngine when workspace records are
overlaid.

Resolves: #98181
Releases: main, 12.4, 11.5
Change-Id: Iaf5479e329693486c992495228fca1b711ba6161
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/80043


Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>