compile fixes

src/rpp/rpp/operators/debounce.hpp

@@ -79,7 +79,7 @@ class debounce_disposable final : public rpp::composite_disposable_impl<Containe
             [](const debounce_disposable_wrapper<Observer, Worker, Container>& handler) -> schedulers::optional_delay_from_now {
                 auto value_or_duration = handler.disposable->extract_value_or_time();
                 if (auto* duration = std::get_if<schedulers::duration>(&value_or_duration))
-                    return *duration;
+                    return schedulers::optional_delay_from_now{*duration};
 
                 if (auto* value = std::get_if<T>(&value_or_duration))
                     handler.disposable->get_observer_under_lock()->on_next(std::move(*value));

src/rppqt/rppqt/schedulers/main_thread.hpp

@@ -41,7 +41,7 @@ class main_thread_scheduler final
 
             QTimer::singleShot(std::chrono::duration_cast<std::chrono::milliseconds>(duration), application, [fn = std::forward<Fn>(fn), handler = std::forward<Handler>(handler), ... args = std::forward<Args>(args)]() mutable {
                 if (const auto new_duration = fn(handler, args...))
-                    defer_for(new_duration.value(), std::move(fn), std::move(handler), std::move(args)...);
+                    defer_for(new_duration->value, std::move(fn), std::move(handler), std::move(args)...);
             });
         }