I think it went partial Hermie...
I just had the same thing happen....
Pinch one off, yellow dust ? or what could be a flower ?
Yes just happened to a bag seed plant at day 35 of 12/12
Chop, chop.... dried it, to young, not ready...This was last of my seedlings, and I chopped it cause I didn't want to drop pollen on my 20 other clones in bud room...
Maybe yours is just a branch or two... Pick um off, and put into a baggie and close it off, then wash your hands ....
Good luck...