The question has been reopened recently by Weatherall (2018). He argues that intertransformable mathematical structures are taken in standard mathematical practice to be the same structure. Thus they should represent the same physical system, precluding denial of Leibniz equivalence. Roberts (2014, Other Internet Resources) has responded that Nature, not mathematical practice, should decide whether two mathematical structures represent the same physical system. Curiel (2018) argues for a similar triviality conclusion as Weatherall but on a different basis: there is no physical correlate to the hole transformation in standard physical practice.