Trying to go negative in the Unity Animation Tab

As the Title says I am Trying to go negative in the Unity Animation Tab and cant do it.
it keeps going to 358 and i Need it the Rotation to go to 2 , 0 , -2 and back to 2.
Any Help Would Be Helpful and thanks.73067-neg.png

Seems to be a bug that was just fixed in Unity 5.3.5p6 patch and 5.4.0 beta

(786827) - Animation: Fixed rotation values set in inspector restricted to [0,360] degrees when recording animation.

Link to bug report