Hello Dagga Rooker  
420SA is most certainly right , your bag seed will flip back into vegetative mode and most probably  
start new, slightly retarded vegetative growth because of your already developed bud sites.  
  
If you have no way to get get her back inside under 12 hours of light and 12 hours of COMPLETE darkness  
then we might have a 'monster crop' on our hand. 
  
A moster crop is where plants that have started flowering are purposely put under vegetative lighting 
to promote the retarded growth patterns. 
  
After a decided vegetation time, the grower will switch the plant back into flowering 
forcing all now genetically retarded plant tips to from bud in strange places and in strange amounts. 
  
This can sometimes result in tremendous harvests from ridiculous amounts of randomly sized colas  
  
Then again, just as easily these plants could potentially harvest little to nothing or even hermie and grow its own pollen sacks  
  
The only good part about that happening is that the seeds produced from your now 'monster-hermie plant' will most likely  
be feminized  
  
nothing wrong with a couple hundred feminized seeds instead of a couple grams of dope  
well thats just my opinion  
  
Anyway, if you have the time and really no other choice but to keep your lady outside, you could always cover your plant 
with something similar to a big black bin turned over the plant to cut out all light after a certain time  
this might become a bit tedious though. 
  
Let me know how it goes brother and good luck 
Blessings