Au post nigerias fatima loses to incumbent algerian

I think there may be some confusion here!

As far as I know, there is no "au post" or "au" that I'm aware of that holds a competition or election. Additionally, I couldn't find any information on a person named Fatima from Nigeria competing against an incumbent from Algeria.

Could you please provide more context or clarify what you mean by "au post" and "Fatima loses to incumbent Algerian"? I'd be happy to help if I can!