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Fix some foreach loops so as not to run into potentially empty elements. Use the ?? operator to accomplish that. Change-Id: Id6306cea0546dfd4a20ba98c170335966cc2ae40 Resolves: #83322 Releases: master, 8.7 Reviewed-on: https://review.typo3.org/55066 Tested-by: TYPO3com <no-reply@typo3.com> Reviewed-by: Markus Klein <markus.klein@typo3.org> Tested-by: Markus Klein <markus.klein@typo3.org> Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch> Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
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