fbx attribute curve import do not support correctly tangent at the start end end of the curve

We are not reading all the key flags and we do not import correctly start key and end key tangent.

I create a shelve but this is not the complete fix, we must do this only if we do not have fbx ket flag eTangentGenericClampProgressive.

cl: 14243750

We also have to create many different test and make sure we follow the fbx flags and get the same result

see fbx sdk documentation

[Link Removed]

Import the attach fbx

Make sure you import animation and also custom attribute animation

open the the imported animation "CurveTwoKey_Anim"

The tangent of the first key and the last key are horizontal, it should not compare to what we got when we import it in Maya.