diff --git a/docs/plans/2026-07-21-localdb-followups-live-gate.md b/docs/plans/2026-07-21-localdb-followups-live-gate.md
index ae028c2e..d2c6ac54 100644
--- a/docs/plans/2026-07-21-localdb-followups-live-gate.md
+++ b/docs/plans/2026-07-21-localdb-followups-live-gate.md
@@ -48,7 +48,7 @@ scenario was believed impossible to recover from — it was a *documented limita
 gate is what turned the limitation into a reproducible case, and the second defect only existed
 behind the first.
 
-## Unrelated finding (NOT a follow-up of this work — pre-existing, worth its own issue)
+## Unrelated finding (NOT a follow-up of this work — pre-existing; filed as `lmxopcua` issue #485)
 
 While SQL was being stopped and started to drive check 4, site-b-1 took a deploy whose artifact load
 hit a transient ConfigDb error, and **emptied its served address space**: