Don't pop-in embedded note if we have it cached

Changelog-Changed: Fixed embedded note popping

damus/Views/Events/BuilderEventView.swift

@@ -13,6 +13,19 @@ struct BuilderEventView: View {
     @State var event: NostrEvent?
     @State var subscription_uuid: String = UUID().description
     
+    init(damus: DamusState, event: NostrEvent) {
+        _event = State(initialValue: event)
+        self.damus = damus
+        self.event_id = event.id
+    }
+    
+    init(damus: DamusState, event_id: String) {
+        let event = damus.events.lookup(event_id)
+        self.event_id = event_id
+        self.damus = damus
+        _event = State(initialValue: event)
+    }
+    
     func unsubscribe() {
         damus.pool.unsubscribe(sub_id: subscription_uuid)
     }
@@ -78,6 +91,9 @@ struct BuilderEventView: View {
                 .stroke(Color.gray.opacity(0.2), lineWidth: 1.0)
         )
         .onAppear {
+            guard event == nil else {
+                return
+            }
             self.load()
         }
     }