Fix to make protection ok when no stock and #208

Job	Run time
gh-travis	0s
pre-commit / pre-commit	3m 58s
phan / Run phan	3m 17s
phpstan / php-stan (8.2)	1m 8s
windows-ci / win-test (windows-latest, 7.4)	6m 40s
	15m 3s

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