Role(s) not being set when Add or Updating a user #2592

#2177

It seems the param was changed from role to roles to support multiple roles, but the merge above then sets role to false on wp_update_user call, with a label stating

"// setting roles will be handled outside of this function."

I don't see anything in that merge regarding the handling outside of that method, so i'm not really sure if this was overlooked, or forgotten about, as my debug went through entire process without any roles being updated, and I am 100% sure the value was available in the $request array, even tried a single string, and CSV without any luck.