Spawnable empty actor loses components after editor restart

Empty actor spawnables do not have any components after an editor restart.

1. Create a new level sequence
2. Drag an empty actor onto the sequence to create a spawnable empty actor
3. Add a component to the empty actor
4. Save the Sequence and level
5. Close and re-open the editor
6. Open the sequence

RESULT

The empty actor has none of the components added to it.

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