Address PR comments.

Signed-off-by: John <jonawals@amazon.com>

Code/Framework/AzToolsFramework/AzToolsFramework/API/ComponentModeCollectionInterface.h

@@ -23,6 +23,7 @@ namespace AzToolsFramework
         virtual ~ComponentModeCollectionInterface() = default;
 
         //! Retrieves the list of all Component types (usually one).
-        virtual const AZStd::vector<AZ::Uuid>& GetComponentTypes() const = 0;
+        //! @note If called outside of component mode, an empty vector will be returned.
+        virtual AZStd::vector<AZ::Uuid> GetComponentTypes() const = 0;
     };
 } // namespace AzToolsFramework

Code/Framework/AzToolsFramework/AzToolsFramework/API/ViewportEditorModeTrackerNotificationBus.cpp

@@ -13,7 +13,7 @@ namespace AzToolsFramework
 {
     void ViewportEditorModeNotifications::Reflect(AZ::ReflectContext* context)
     {
-        if (AZ::BehaviorContext* behaviorContext = azrtti_cast<AZ::BehaviorContext*>(context))
+        if (auto* behaviorContext = azrtti_cast<AZ::BehaviorContext*>(context))
         {
             behaviorContext->EBus<ViewportEditorModeNotificationsBus>("ViewportEditorModeNotificationsBus")
                 ->Attribute(AZ::Script::Attributes::Scope, AZ::Script::Attributes::ScopeFlags::Automation)