I just upgraded to Nextcloud 13 beta1 (user_ldap version: 1.3.1) and this error appears over and over in the logs when an LDAP user does any action, even when clicking a button or reloading the page.
bin2hex() expects parameter 1 to be string, array given at /var/www/nextcloud/apps/user_ldap/lib/Access.php#1638
Everything seems to work fine for now, but even if this is a harmless error it fills the logs pretty quick with just one LDAP user logged in. With a few dozens of active users it will produce way more logs than wanted. Anyone know where this error comes from and how could it be fixed?