[BUGFIX] Correct condition in TemplateService

Issue #85092 introduced a copy & paste bug in TemplateService.

Resolves: #86255
Related: #85092
Releases: master
Change-Id: If0d92e0886e625db8793991f264628030ccfdad4
Reviewed-on: https://review.typo3.org/58277


Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>