Can't create users called guest

[jdaviescoates]

LDAP is not working.

Also, whenever I try to create a user with the username 'guest' it tells me:

Found an existing account for this e-mail address or nickname.

But there are no other users so that's a but confusing.

It did let me create a user called 'ilovetoread' - I wonder why 'guest' isn't allowed?

[nebulon]

So the "guest" user is already used internally for anonymous access https://github.com/janeczku/calibre-web/issues/949