Duplicate Baikal MySQL Users for LDAP users #109
Description
When using Apple Calendar and connecting as eduardomozart, it creates a new User on Baikal DB automatically. But when logging in as eduardomozart@domain.tld, it creates a second user. I do believe it happens because it uses the username provided during login instead of the mail LDAP attribute or at least extract the @domain.tld, since YunoHost doesn't allow creating users with the same username.
It can be a bit problematic since each user contains different Calendars and Contacts, so the end user may think that he/she lost their data when logging in on Baikal using a different username format (username or email address).