OTP_MAX_LEN : 64

[tchernomax]

Hello,
I have a YubiKey standard, firmware version 2.3.1.
I use yubikey-personalization-gui version 3.1.19, library version 1.16.3 on Archlinux.
I configure my YubiKey with "Yubico OTP" mode (advanced) where I can set a public ID of 0 to 16 bytes (so 0 to 32 modhex characters).
So at max the OTP length goes to 32(static public ID)+32(dynamic OTP)=64 modhex characters.
So why OTP_MAX_LEN is set to 48 ?
Comment say "TOKEN_LEN plus public identity of 0..16" but it's bytes not characters.
Maybe there is something I don't get ?