Ofcourse. It's not guaranteed to stop the flowering but sometimes on closet grows when things go wrong or timers don't work or ...... Plants start to flower and they stop them by giving them full blast light for a few days. Doesn't work everytime but, It's one thing I can think of. Give it a try and If U see them flowers getting bigger and BIGGER then flower them. If flowering slowed or stopped, Cut some of those buds, Leave a few on the plant as the plant could use the nitrogen in ur buds to develope new leaves and branches. Its very tricky and again it's not guaranteed. BTW if u see flowers stop to grow u might wanna give them veging nutes(that may also help stretching in branches instead of growing bigger buds)
Im going to suggest you stop giving out all of this half-true info. If the plant is flowering under 18hrs of light then it is in fact an autoflowering plant. Re-vegging an autoflower plant is impossible, keeping an autoflower as a mother is impossible. Never cut under developed buds off a plant, thats the most rediculous thing I've ever heard, except of course "the plant could Use nitrogen to in ur buds to develope new leaves and branches" - That's truly ridiculous.
Also veg nutes do NOT "help stretching in branches instead of growing bigger buds", they provide the plant with nitrogen, keeping the leaves green which makes photosynthesis possible. The plant uses up the nitrogen stored in the leaves during flowering to produce buds, turning them yellow in the process. I dont know the specific science behind this but thats what happens.
Stretching in branches is not a desireable trait, Autoflowering plants (like the OP's) cannot be re-vegged, veg nutes keep the plants green and healthy, pre-mature buds are worthless, and Forzaitaly1 should keep all his false info to himself.
Let that girl go for a while and keep a close eye on her. If she continues to flower then dont worry about flipping to 12/12, start feeding her some flower nutes and some molasses, and be patient.
Good luck finding a new mother
. this site is full of usefull info, but also be aware of inexperienced growers handing out all of their "knowledge"...