Board Thread:Naruto Discussions/@comment-11891028-20170719213849/@comment-25122992-20170719214646

I'd assume that Madara's sacrifice used as his body basically died when Madara was revived with the Rinne Tensei, since the body itself was turned into Madara's own body in the moment the RT came into effect. It's a shame it was never explained what happens to the sacrifices' souls when they become the hosts for Edo Tensei souls. It's very much possible that the soul leaves the body in the very moment the other, dead ET soul is inserted into this body instead, but still, it's only an assumption.

P.S. Just to correct, RT-resurrected Madara wasn't Indra's reincarnation anymore, as stated by Hagoromo, since Indra's soul has already passed onto the other person, namely Sasuke.