fixed stale state after logout and replayed or lost share intents

lib/state/app/modules/chat/bloc/chat_bloc.dart

@@ -123,6 +123,15 @@ class ChatBloc
   /// No-op when the bloc has already moved on to a different token: when
   /// popping a stacked chat (B over A), A's didPopNext runs setToken(A)
   /// before B's dispose fires.
+  /// The chat view may still be popping when the sign-out resets this bloc,
+  /// so leaveChat would find no token and the long-poll would keep running.
+  @override
+  Future<void> reset() {
+    _chatViewActive = false;
+    _stopLongPoll();
+    return super.reset();
+  }
+
   void leaveChat(String fromToken) {
     if ((innerState?.currentToken ?? '') != fromToken) return;
     _chatViewActive = false;