Recursive clients values different in rndc vs stats channel

In version 9.16.33-S1 (possibly others?) in some circumstances, "recursive clients" as reported by "rndc status" and "RecursClients" reported by the statistics channel can sometimes be very different. Reported by customer in https://support.isc.org/Ticket/Display.html?id=21319

e.g.

• Mon Sep 26 10:27:55 CST 2022
• recursive clients: 151/14900/15000
• RecursClients 12074

---

• Mon Sep 26 10:37:18 CST 2022
• recursive clients: 185/14900/15000
• RecursClients 13493

---

• Mon Sep 26 10:39:05 CST 2022
• recursive clients: 128/14900/15000
• RecursClients 13588