Interesting. Well there's no harm in trying to boot off the patched img file. It's temporary. It'll either boot or it won't. A simple reboot will have you booting off the stock boot.There was an update to 18.104.22.168 today and my dumb ass took it
I'm curious what will happen if/when T-Mobile pushes the update to me. There's apparently some steps I can take to maintain the rooting even after an OTA update.
I may investigate trying to get over to the AA version of the ROM, flashing the OnePlus supplied version. This way I can get OTA's from OnePlus directly. From my reading through this forum, I'm not a fan of what T-Mobile has done to the firmware. Especially with that odd self-deleting partition after unlocking that can't be restored.