Steps to reproduce:

1. Open attached project using Unity 5.4.0a4 or earlier
2. Open scene "Test"
3. Open scene view
4. Select "Quad" in hierarchy
5. Notice that it has Texture generated by UV_Flip shader

6. Open attached project using Unity 5.4.0b3
7. Open scene "Test"
8. Open scene view
9. Select "Quad" in hierarchy
10. Notice that no texture is generated by UV_Flip shader

Regression introduced in 5.4.0a5
Reproducible with: 5.4.0b3