geni slice nodes when the project was a local project. In this case, we
want to return the project accounts and ignore the ssh keys sent in the
geni API call (a future change might involve a merge of accounts, but
not unless someone actually needs it). And for a nonlocal project we of
course still want to return the geni API ssh keys, but not return the
project member accounts, since they are just stub accounts and don't
actually have any ssh keys associated with them. They just cause
confusion.