How to reproduce:
1. Open the attached project "IN-125804"
2. Open "SampleScene"
3. In the Project window, navigate to the "Models" folder
4. Drag the "Enemy" asset into the Hierarchy
5. From the Hierarchy, drag the "Enemy" GameObject into the Project window to create a prefab
6. Attempt to delete the created "Enemy" prefab
7. Observe the Project window

Actual result: "Enemy" prefab does not get deleted
Expected result: "Enemy" prefab gets deleted

Reproducible with: 2.3.4 (6000.0.b11), 2.4.3 (6000.0.63f1, 6000.2.14f1, 6000.3.0f1, 6000.4.0a5, 6000.5.0a2)

Reproducible on: Windows 11
Not reproducible on: No other environments tested