Munchkin Cthulhu - About cultist rules

[Francysco92]

Hi there,
Me and my friends were playing the Munchkin Cthulhu expansion. We took a look at the rules and did not know how to solve this doubt.
The rules says "If all the players become Cultists but one, the non-Cultist player gets a level, and this can be the winning level".
So what about if i get a level this way, and then a cultist draws a curse that makes him lose his class, and then the same person who lost his class becomes a cultist again, do i get another level? how does this rule really works?.
Thanks in advance.