I'm selling my Apple Watch tomorrow. It had one of the latest versions of WatchOS 3 beta on it. I've already unpaired it and reset it. I assume it will still have WatchOS 3 on it when the new owner goes to set it up. Do I just tell them to be sure to upgrade to the GM once it's available? Technically I know you're not supposed to sell a device with beta on it but I also know it's nearly impossible to downgrade the watch. Hoping I didn't screw things up somehow.