Does Nirvana have svabhava in Madhyamaka?

As suggested in this comment , we shall try to look more closely into this. Does Nirvana have svabhāva in Madhyamaka? Here, svabhāva is as defined in Nagarjuna's Madhyamaka, and commonly translated as inherent existence, inherent nature or inherent substance. Why conditioned things (the Pali term sankhara) do not have inherent existence (svabhāva) is explained in this answer , this answer , this answer and this essay . However, Nirvana is unconditioned. So, does it have or not have svabhāva? And why?