Fix loading bug when opening boosted posts

Changelog-Fixed: Fixed thread loading issue when clicking on boosts
Signed-off-by: William Casarin <jb55@jb55.com>

damus/Nostr/NostrEvent.swift

@@ -101,7 +101,11 @@ class NostrEvent: Codable, Identifiable, CustomStringConvertible, Equatable {
     }
 
     lazy var inner_event: NostrEvent? = {
-        return event_from_json(dat: self.content)
+        // don't try to deserialize an inner event if we know there won't be one
+        if self.known_kind == .boost {
+            return event_from_json(dat: self.content)
+        }
+        return nil
     }()
     
     private var _event_refs: [EventRef]? = nil
@@ -739,3 +743,12 @@ func validate_event(ev: NostrEvent) -> ValidationResult {
     ok = secp256k1_schnorrsig_verify(ctx, &sig64, &raw_id_bytes, raw_id.count, &xonly_pubkey) > 0
     return ok ? .ok : .bad_sig
 }
+
+
+func inner_event_or_self(ev: NostrEvent) -> NostrEvent {
+    guard let inner_ev = ev.inner_event else {
+        return ev
+    }
+    
+    return inner_ev
+}

damus/Views/TimelineView.swift

@@ -20,7 +20,9 @@ struct InnerTimelineView: View {
     var body: some View {
         LazyVStack {
             ForEach(events, id: \.id) { (ev: NostrEvent) in
-                let tv = ThreadView(thread: ThreadModel(event: ev, pool: damus.pool, privkey: damus.keypair.privkey), damus: damus, is_chatroom: has_hashtag(ev.tags, hashtag: "chat"))
+                let tm = ThreadModel(event: inner_event_or_self(ev: ev), pool: damus.pool, privkey: damus.keypair.privkey)
+                let is_chatroom = has_hashtag(ev.tags, hashtag: "chat")
+                let tv = ThreadView(thread: tm, damus: damus, is_chatroom: is_chatroom)
                             
                 NavigationLink(destination: tv) {
                     EventView(event: ev, highlight: .none, has_action_bar: true, damus: damus, show_friend_icon: show_friend_icon)
@@ -80,3 +82,4 @@ struct NavigationLazyView<Content: View>: View {
         build()
     }
 }
+