[BUGFIX] Fix wrongly used typecast in combination with ?? operator

The 'else' part would never be returned in this cases.

Used [a-zA-Z0-9]{3,}\)[^(]?\$.*\?\? to find the cases.
Care, this brings up false positives as well.

Resolves: #91154
Releases: master, 9.5
Change-Id: Ifdb0f75995543c3cc8abeb81aba52e935e9bf9a1
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/64270


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: Susanne Moog <look@susi.dev>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Susanne Moog <look@susi.dev>