Catalina + Time Machine may have bricked my mac. Painfully I just ran into a serious restore bug with Catalina. I did a clean install of Catalina and migrated

Catalina + Time Machine may have bricked my mac. Painfully I just ran into a serious restore bug with Catalina. I did a clean install of Catalina and migrated from a Time Machine backup using Migration Assistant. The migration hung (no progress after 3h) so I hit the cancel button. Big mistake. I’m now unable to log in to my box. Migration assistant migrated some of my data over since my profile picture changed from a stock Catalina tennis ball photo to the custom one I used on Mojave. I would have expected cancelling to not move ANY data over. Guessing the partial copy somehow messed up my ability to log in. Ever worse: I wasn’t using iCloud to reset my password. And the recovery code I threw in 1Password just... isn’t in 1P any longer. When Catalina provides the recovery code it never said that this was the on my way to reset your password if you lose your login pass (or if it locks you out). I can’t even do another clean install because Catalina asks you for your account password in Recovery mode. So: can’t login because Catalina messed up a migration, and I’m not using iCloud and don’t have the recovery code. The solution from Apple support is to take my machine into the Genius Bar. I’m hating some Catalina product manager (because I cant reset my password) and dev team (because of the migration bug that corrupted my login password) right now.