It's not the relocation so much as inconsistent dark periods that cause stress.
Cannabis is photoperiod dependent for flowering.
As the nights lengthen flowering begins. If they then see a shorted dark period, they try to veg.
Then the night gets long again, etc. you get the picture.
Turn on a light in the middle of it's night and your plant will see it as two very short nights.
Breeders will take advantage of this and purposely light-stress female plants to get XX pollen for feminized seeds.

Some strains are very sensitive to stress others can take a joke.
I once beat a bush like a red-headed step-chile' tryin' to get sacks.
Stayed all girl to the end.

Aloha,
Weeze