Fix bugs in ArMem and make disk loading and storing nicer

source/RobotAPI/libraries/armem_gui/memory/TreeWidget.cpp

@@ -299,16 +299,18 @@ namespace armarx::armem::gui::memory
         (void) level, (void) item;
     }
 
-    template <class... T>
-    void TreeWidget::updateContainerItem(
-        const base::detail::MemoryContainerBase<T...>& container, QTreeWidgetItem* item)
+    template <class ContainerT>
+    void TreeWidget::updateContainerItem(const ContainerT& container, QTreeWidgetItem* item)
     {
+        ARMARX_IMPORTANT << "Updating container " << container.id();
         updateItemItem(container, item);
         item->setText(int(Columns::SIZE), QString::number(container.size()));
 
-        if constexpr(std::is_base_of_v<base::detail::AronTyped, base::detail::MemoryContainerBase<T...>>)
+        // Does not work
+        if constexpr(std::is_base_of_v<base::detail::AronTyped, ContainerT>)
         {
-            const base::detail::AronTyped& cast = dynamic_cast<const base::detail::AronTyped&>(container);
+            ARMARX_IMPORTANT << "Updating type of container " << container.id();
+            const base::detail::AronTyped& cast = static_cast<const base::detail::AronTyped&>(container);
             std::string typeName;
             if (cast.aronType())
             {