So far as I know, that's not how it works anymore. Jo died during the Null attack and Hope brought her back. She remembered everything that had happened before.

Oh! Yeah, we've got plenty. What size d'you need?

[she hops back on the counter and opens the cupboard where the bandages are kept]

No. It was weird as fuck. But I guess the deaths don't really count 'cause it's not like they're going to the afterlife.