Renaming a Sequencer spawnable actor in the World Outliner will revert on save

Renaming a Sequencer spawnable actor in the World Outliner will revert back to the old name on save.

Not a regression because Sequencer spawnable actors in 4.16 didn't show in the World Outliner.

User Description:

Renaming Sequencer Spawned Actor hides the change

The Name change is not saved. However, if you use Convert to Possessable, the name change is indeed there.

So to rename a Spawned actor in the Sequencer, one must workaround with a Convert to Possessable and Convert to Spawnable back again. However, if the Actor uses Attaching, this will corrupt its Transform, which is another long standing Sequencer bug.

1. Open a new blank project
2. Create an actor class BP > Place it into the level
3. Toolbar > Cinematics > Add Level Sequence
4. In the Sequencer tab, Add Track > Add the newly created BP > Right-click BP > Convert to Spawnable
5. Back in the editor > Content Browser > Rename the BP
6. Save the level

Results: The renamed BP will revert back to it's original name

Expected: For either the renamed BP to also be renamed in Sequencer or the BP is unable to be renamed in the World Outliner at all.

Renaming Sequencer Spawned Actor hides the change