m0useanswered grow question a month ago Call me crazy but them parts don't 100% look like males to me, maybe its my screen or my eyes but they look like weird leaf nodes bunched together vs pods, not saying its not a male, just looks weird to me.
I think its smart to isolate it for now, If your confident its a male, then kill it or save it pollen and make some reg seeds, estimating it is a true male and not a weird hemri thing.
Also smart to message Fastbuds and ask them WTF is this. They monitor the questions part of the site sometimes and not likely to see this, but their reps are on the site and can help out. Send them a email with the pics, don't send them a DM as they are slow to reply here given all the chaos of GD and they are at a bunch of weed shows right now.
Female seeds should be 99.99% female, but does not mean weird shit can't happen, I have grown out males from selfed autos before or what appeared to be a male. Fastbuds also does not do their own breeding. its out sourced and if humans are involved and they likely are, erros happen.