Assets not deleted when using Force Delete on a folder

Noticing a couple assets remaining when force deleting a folder in a first person template.

Regression: Yes works in 4.13

1. Create a new blueprint first person template
2. File > New Level
3. Select Default
4. In the content browser show Source Panel
5. Right Click the FirstPerson folder
6. Select Delete
7. Select Force Delete
8. Select View Options > Uncheck Show Folders

Result: 3 assets remain after force deleting

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