m0useanswered grow question 3 years ago I think of it showing Pistils as showing sex not entering flower.
If you grow out a photo period long enough in veg they will show pistils with out going into flower.
Showing sex is normally followed by entering flower for most growers though as they tend to flip around the same time as it enters flower.
autos will also just go straight into flower shortly after showing sex.
Best Of Luck!