VergeGroup
diff --git a/‎Sources/Verge/Derived/Derived.swift
+1 b/‎Sources/Verge/Derived/Derived.swift
+1
@@ -156,6 +156,7 @@ public class Derived<Value: Equatable>: Store<Value, Never>, DerivedType, @unche
   }
 
   public final override func stateDidUpdate(newState: Changes<Value>) {
+    super.stateDidUpdate(newState: newState)
     // projects this update into upstream state
     if let _set, newState._transaction.isDerivedFromUpstream == false {
       _set(newState.primitive)
Original file line number	Diff line number	Diff line change
`@@ -156,6 +156,7 @@ public class Derived<Value: Equatable>: Store<Value, Never>, DerivedType, @unche`
`156`	`156`	`}`
`157`	`157`
`158`	`158`	`public final override func stateDidUpdate(newState: Changes<Value>) {`
	`159`	`+ super.stateDidUpdate(newState: newState)`
`159`	`160`	`// projects this update into upstream state`
`160`	`161`	`if let _set, newState._transaction.isDerivedFromUpstream == false {`
`161`	`162`	`_set(newState.primitive)`