Note, if `n != SIZE_MAX`, we cannot check the existence of the specified string in the set without duplicating the string. And, set_consume() also checks the existence of the string. Hence, it is not necessary to call set_contains() if `n != SIZE_MAX`. (cherry picked from commit cb649d12bf3283974305c98ecf51e4bf7596a8bf) (cherry picked from commit a64c080ccf0e854c005798870783f3f02a3d843c)
System and Service Manager
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