Delinquency stats are accumulated into the TicketingSystem at the end of each CurOp. However, some operations share the same opCtx (where the ExecutionAdmissionContext, and therefore the delinquency stats, reside) while having different nested levels (child CurOps).

Each time one of these child operations finishes, it calls CurOp::completeAndLogOperation, which increments the totalized delinquency stats.

This is incorrect — the stats should be accumulated only once, at the end of the entire operation, meaning only the top-level CurOp should contribute to the totalized delinquency.