WT 1.1.22 reengineering: Training Plan execution, registration

lib/bloc/session/session_bloc.dart

@@ -13,6 +13,7 @@ part 'session_state.dart';
 
 class SessionBloc extends Bloc<SessionEvent, SessionState> with Logging {
   final Session session;
+  StreamSubscription? _sub;
 
   SessionBloc({required this.session}) : super(SessionInitial());
 
@@ -41,6 +42,7 @@ class SessionBloc extends Bloc<SessionEvent, SessionState> with Logging {
   @override
   Future<void> close() async {
     await this.close();
+    _sub?.cancel();
     super.close();
   }
 }