Maintenance: Avoid copy in ACLChecklist::calcImplicitAnswer() #195

Job	Run time
CodeQL-tests	34m 41s
source-maintenance-tests	2m 51s
build-tests(ubuntu-22.04,gcc,default)	5m 17s
functionality-tests	17m 12s
build-tests(ubuntu-22.04,gcc,minimal)	4m 3s
build-tests(ubuntu-22.04,gcc,maximus)	6m 1s
build-tests(ubuntu-22.04,clang,default)	6m 0s
build-tests(ubuntu-22.04,clang,minimal)	4m 48s
build-tests(ubuntu-22.04,clang,maximus)	6m 52s
	1h 27m 45s

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