I've done this twice, both times randomly. The first time I had one too many for the tent and we were having a mild winter so I put my least favorite outside in February. It barely grew, vaguely started to flower, and managed to stay alive until the days got longer at which time it went back into veg in a truly ugly way. Later in the summer it got hit by a sprinkler and the deformed strange buds molded over.
This last winter I popped a bunch of seeds and after 6 weeks I flipped them to 12/12 around Feb. 15th. Within 10 days two had shown sex as hermies, one was a boy, so those got thrown out into a compost pile. One hermie landed upright... so I left it there. It was never exposed to sub-freezing weather, and I'm in NW Oregon as a reference.
Around the end of the first week in April, this is what the indoor one looked like compared to the outdoor one, obviously more light and warmer temps made a difference:
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And this is what the outdoor looks like today:
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No doubt it's starting to go into veg again, but I'll need to take this one down in a month because it keeps making boy parts and I'll be putting in my regular outdoor at that point. Not sure if that gives you any useful info... I'd say you'll need to cover them in light dep way if you don't want them to go back into veg.