diff --git a/internal/inventory/nodes.go b/internal/inventory/nodes.go
index c0fb5d47..643c4362 100644
--- a/internal/inventory/nodes.go
+++ b/internal/inventory/nodes.go
@@ -1133,7 +1133,8 @@ type Reported struct {
 	Outcome string
 	// At is when it last reported; nil if it never has.
 	At *time.Time
-	// Sent is not kept: nothing is sent (ADR 0539 §5). Always nil.
+	// Sent is not read: nothing is sent (ADR 0539 §5). Always nil. The columns that recorded a send stay in the store for the
+	// controller of before; C6 never reads them (deferred drop, issue 1945 note 8).
 	Sent *time.Time
 	// Current is whether the machine has everything the assigner wants of it, read from its haves beside the wants
 	// (cmd/mesh-controller lastReports); false here, as this reads neither.