Animation: Start scale becomes default in that animation. Why?

I have made a square with a animator controller. It has three animations, and the only thing being modified is its transform>scale. One normal (1, 1, 1), one big (1.25, 1.25, 1) and one small (0.75, 0.75, 1). My problem is: it seems like when it switches state that states start scale becomes (1, 1, 1) no matter what it is. So after switching to big the 'new (1, 1, 1)' is now (1.25, 1.25, 1), and so the cube wont really change even though it is playing another animation with another scale.