test

Fix + add comment #499

Job	Run time
code-format	36s
codeql (cpp)	2m 46s
test (test --vm=d10 --param=no-performance --param=c-only)	7m 47s
arch (ppc64le, ubuntu20.04)	4m 42s
test (test --vm=d10 --param=module=mock --param=module=integration)	3m 50s
arch (s390x, ubuntu20.04)	4m 21s
unity	57s
test (doc --vm=u20)	8m 46s
test (test --vm=u22 --param=build-package --param=module=mock --param=module=integration)	5m 6s
test (test --vm=u22 --param=c-only --param=no-valgrind --param=tz=America/New_York)	5m 47s
test (test --vm=u22 --param=c-only --param=no-coverage --param=no-back-trace)	5m 34s
test (test --vm=f40 --param=c-only --param=no-valgrind --param=no-coverage --param=no-performance)	3m 33s
test (doc --vm=rh8)	6m 42s
test (test --vm=rh7 --param=module=mock --param=module=integration)	3m 59s
	1h 4m 26s

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