BUG: Predicting from DKI with a volume of S0 raises an error.
BUG: Predicting from DKI with a volume of S0 raises an error.

FrancoisRheaultUS/dipy,nilgoyyou/dipy,villalonreina/dipy,StongeEtienne/dipy,villalonreina/dipy,matthieudumont/dipy,StongeEtienne/dipy,nilgoyyou/dipy,FrancoisRheaultUS/dipy,matthieudumont/dipy