Steps to reproduce:
1. Open user attached project
2. Navigate to the only texture asset
3. In the inspector, try to set the Aniso level to anything but 16
4. When you press Apply, the level reverts to 16

Expected result: When applying the changes, Aniso levels get applied to what was set
Actual result: When applying the changes, Aniso levels revert to 16

Reproduced on 5.5.3p1 5.6.0p4, 2017.1.0b4