Yes, I've done that before, but I don't like doing it.Good afternoon @donkeyjunk hope you are well my friend.
It's a common practice in sexing reg's.
They go into flower thereby showing male or female.
By putting into a veg light cycle the flowering cycle is terminated, but not without effecting her.
She will go a bit wonky at first throwing single blade leaves.
And sprouting branches sometimes double the average volume.
So, what I do is different, with same results.
I will sprout three or four seeds. When they a meter tall I take ten clones offa each of them, and carefully label to each individual plant.
Then I put them into flower. If plant #1 is male, I destroy him ... and all his babies.
If plant #2 is female, I destroy her; and keep all her babies.
Repeat as many times as you have different genetics.
This is best used for indoor grow. As, it is pretty well known that outdoors - seeds do better.
If I wanna do a seed/outdoor grow, I just buy (or make) feminized seed.
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