Hey my friend! As far as I know, this is an autoflower (Black Herer Auto). Autoflowers can show pistils very early, and it doesn't necessarily mean the plant has been stressed. Also, changing the light schedule to 24 hours won't make an autoflower return to the vegetative stage, since their flowering is determined by age rather than the light cycle.
I did a genetic cross project and named it OG Cream. I'd be happy if you check it out. 👽🙏🔥
I'm currently drying the harvest from this new cross and doing the final testing. I'd really appreciate hearing your thoughts once you take a look! 💚