Cannot save a duplicated level in a blank project

Cannot save a duplicated level in a blank project.

1. Open the editor
2. Create a blank project
3. Add a print string to the level blueprint
4. Save all
5. Right click the map icon in the content browser > Duplicate
6. Double click the new map
7. It will prompt to save
8. Click save
9. Notice that an error is thrown preventing the use from saving

Expected: Duplicating the map would make another map that is an exact copy of the first and would be able to be saved
Result: Changes cannot be saved to a duplicate map

Fix UE-51650

i have this problem UE4CC-Windows-58DC12AF4B97F057BD108FBFF569B2E9_0000

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