Steps to reproduce:

1. Open attached project
2. Open scene "Scene"
3. In hierarchy, select "Monkey" GO
4. Notice that "Animal" component has "Favorite Fruit" field. Favorite Fruit accepts ScriptableObjects
5. Bring up object selection window for Favorite Fruit
6. Notice that it has "Scene" tab although ScriptableObject can never be found in scene

Expected behavior: There's no Scene (only Assets) tab because ScriptableObject "live" in project, not scene and therefore scene tab will always be empty which makes it useless.

Reproduced with: 5.1.4f1, 5.2.4f1, 5.3.3p1, 5.4.0b8