Sequence repeatedly dirties when it contains a spawnable actor

Level sequence becomes dirtied when opening other level sequences if the level sequence contains a track with a spawnable actor

1. Open Editor
2. Create a new actor blueprint
3. Add the actor to the scene
4. Create a new level sequence (Cinematics button > Add level sequence)
5. Create an actor track in sequencer ([+Track] button > Actor to sequencer > Select the actor that was created)
6. Right click actor track > Convert to spawnable
7. Save the sequencer
8. Close level sequencer tab
9. Create a new level sequence

Result: The first level sequencer will now become dirty (and will do so whenever another sequence is opened)
Expected: The Level sequence would only become dirtied when a change is made