Og Kush coco (part of first grow)

I was initially intending to give her another week but an electrical problem caused the light to stay off for a few hours so I decided to send her with the others in their transition week. Actually, they are on the same timer but Og kush is alone in a 3x3 tent under an SF-2000 light. I gradually reduced light exposition from 19h to 12h per day. Bad luck ! I splitted the poor thing in half. I was not even intending to LST when it happened. I topped a good cm above node but still, it splitted. I sent a bunch of Remo rooting gel in the middle of that trunk and closed the gap, fastening that horror with thick LST wire.