As I quoted earlier,
??”? ?? ????? ??”?, ?????”? ?? ????? ?? ??”? ,??”? ???? ??? ????? ??? ????? ???.
Re: hana’ah
MB also paskens (318-2) that there’s no issur b’dieved when there is a machlokes, so even though we don’t pasken that way, if the gedarim of maaseh Shabbos of a goy or Yid are the same, it should be mutar.