'Internal Server Error' when setting up MFA/2FA

[an_admin]

I was using a font trick:

$̵̟̞͎̪͖̞̱̇̋͘ṁ̴̤̞̍́̈́y̵̨̡̟͕̣̠̜̳̳͎̋̃̑̎͘_̴̡̺̉̿͂̍̇f̶͕͋̓͘ơ̸̞̠̰̝̲̐͌̔̒ŗ̸̢̱̘͓̦̟̋̂̄̽́̿̿͌̚ù̵̜̪̲̹̺͈͍͎̮̍́̋̀̄̿̽̚͠m̷̨̖̯̮͎̯̦̗͒͛̇̄̂_̵͇̃̓̊͗̆͑͛͋ņ̸̼͕̫̪̲͙͈̅̽̑̌̑͠ą̸̞͇̦̙̥͚̀m̸̢̛̺͓̲̲̙͉̉͐̽͂͆́̕ê̴̥̣̩̥̇͑͌͒̌͐̕͝

Definitely an edge case, and I’m impressed that the QR library was the only thing it broke.