well, its an old question with M 88 commission rifles...
the bolt action is in fact a modified Mauser 71 action but the Mannlicher Patent magazine makes it a Mannlicher too.
The Mannlicher Schönauer is so not a Mannlicher because this rifle combine a modified M 88 action with the Schönauer magazine. I think there is not a single design element that comes from the hands of Mannlicher in this rifle but it was made in the Steyr Factory.
Good part of M 88 rifles were made also in Steyr for using the Mannlicher magazine patent hold by the Steyr factory than.