Adds another check to make sure the event does not exist in the local memory before notifying.

app/src/main/java/com/vitorpamplona/amethyst/service/notifications/EventNotificationConsumer.kt

@@ -22,6 +22,7 @@ class EventNotificationConsumer(private val applicationContext: Context) {
     fun consume(event: Event) {
         val scope = CoroutineScope(Job() + Dispatchers.IO)
         scope.launch {
+            if (LocalCache.notes[event.id] == null) {
                 // adds to database
                 LocalCache.verifyAndConsume(event, null)
 
@@ -31,6 +32,7 @@ class EventNotificationConsumer(private val applicationContext: Context) {
                 }
             }
         }
+    }
 
     private fun notify(event: PrivateDmEvent) {
         val note = LocalCache.notes[event.id] ?: return