I saw it D: I'm just on leave and am very inactive.. only on from my phone for awhile. So I can't copy / paste the post from my phone. try asking another s-mod?
I haven't been able to be on to check, only really on via my phone. You might have to ask an admin. Going through all that to change the owner of a thread seems like a bit much. It would be easier to just undo the merge. D: Moving it, changing owners, and moving it again with the size of the thread is a lot..
PM one of the admins with a red username. I can't do any of via my phone atm.