Recover the password with Forgot? (yes) from the CLI
Change the password in the web interface to something like ꦐ㣋𡫯𮋥썾𦉗幼𤽋𭼧﹙蘋𧔒𩝞𡘁𩸨𨢄𰎿𥙘𗥝踥凇葓𑥁𣣯𨌭𥥃𨡙劇𭡇�
(not something like u_ìüP÷íA;À/®`~â¸ÓDºâ/¨¾î^fëÏwÑo]Hø5@¶Þ$ÊDÈ2f.m8À\ÍÇ»5ë¯T;ëéEbí]±+, it passes as it should)
Surge can't handle long full Unicode passwords
How to reproduce:
Software I used: