Description:

While enabling 1% query stats sampling by default (SERVER-116390), the query_stats_concurrent FSM workload was observed to time out (~90 minutes, no assertion failures) when internalQueryStatsSampleRate is set to 1 in the test's setup function.

Setting internalQueryStatsSampleRate: 0 and relying on the existing window-based unlimited path (internalQueryStatsRateLimit: 1) does not exhibit this behavior, which matches the preSERVER-116390 behavior of the test.

Both configurations result in 100% query stats capture for reads, so the performance difference is unexpected. 

Steps to reproduce:

1. In jstests/concurrency/fsm_workloads/query/query_stats/query_stats_concurrent.js, set internalQueryStatsSampleRate: 1 in setup (alongside the existing internalQueryStatsRateLimit: -1)
2. Run the concurrency suite against this workload
3. Observe ~90 minute runtime with no assertion failures before the task timeout

Expected: Both paths at 100% capture should have comparable performance.

Workaround (applied in SERVER-116390): Set internalQueryStatsSampleRate: 0 so the window-based unlimited path handles capture.