validator: fix potential infinite loop #4863

Job	Run time
apps-build-release	1m 34s
libs-build	1m 42s
apps-x86-build-release	1m 43s
client-build	2m 45s
apps-arm64-build-release	6m 27s
apps-build	2m 15s
libs-vcpkg-build	2m 35s
client-vcpkg-build	3m 11s
apps-vcpkg-build	4m 11s
libs-cmake-build	1m 59s
libs-arm64-build	2m 7s
apps-arm64-build	7m 28s
manager-with-webview-vcpkg-build	8m 5s
server-build	3m 44s
manager-with-webview-build	6m 17s
manager-without-webview-build	5m 43s
unit-test-build	3m 41s
integration-test-build	4m 48s
	1h 10m 15s

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