optimizely
diff --git a/‎lib/notification_center/index.ts‎
Lines changed: 1 addition & 0 deletions b/‎lib/notification_center/index.ts‎
Lines changed: 1 addition & 0 deletions
@@ -121,6 +121,7 @@ export class DefaultNotificationCenter implements NotificationCenter, Notificati
     const remover = this.removers.get(listenerId);
     if (remover) {
       remover();
+      this.removers.delete(listenerId);
       return true;
     }
     return false
Original file line number	Diff line number	Diff line change
`@@ -121,6 +121,7 @@ export class DefaultNotificationCenter implements NotificationCenter, Notificati`
`121`	`121`	`const remover = this.removers.get(listenerId);`
`122`	`122`	`if (remover) {`
`123`	`123`	`remover();`
	`124`	`+ this.removers.delete(listenerId);`
`124`	`125`	`return true;`
`125`	`126`	`}`
`126`	`127`	`return false`