769. Alienation of bequeathed property, even when forced or made under a resolutive condition or by exchange, also entails revocation with regard to everything that has been alienated, unless the testator provided otherwise.
Revocation subsists even if the alienated property has returned into the patrimony of the testator, unless a contrary intention is proved.
If the forced alienation of the bequeathed property is annulled, it does not entail revocation.