real users with deadmau5 and dinnerbone/grumm username don't show properly

[1m4b0t]

i've noticed that when having the mod enabled users with the username Dinnerbone and Grumm don't show upside down even with all the options inside the mod turned off and deadmau5's ears are bugged when turning off the custom ears option on 26.2 and they just disappear on 1.21.11 on users with the deadmau5 username

i've tested this on clean instances on prism launcher with only fabric api and the minecraftcapes mod with custom capes and ears turned off and in both minecraft versions everything works as intended with the mod disabled

1.21.11
mod enabled

mod disabled

26.2
mod enabled

mod disabled