Fix ExpandedValue sanitization on struct collection #32370

Job	Run time
windows-service-test (windows-2025)	3m 49s
windows-service-test (windows-11-arm)	3m 25s
windows-unittest (windows-2022)	15m 39s
windows-unittest (windows-2025)	18m 3s
windows-service-test (windows-2022)	3m 8s
windows-unittest (windows-11-arm)	11m 44s
	55m 48s

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