github.com/cs3org/reva/v2@v2.27.7/changelog/2.0.0_2022-03-03/ldap-guid.md (about)

     1  Enhancement: Allow using AD UUID as userId values
     2  
     3  Active Directory UUID attributes (like e.g. objectGUID) use the LDAP octectString
     4  Syntax. In order to be able to use them as userids in reva, they need to be converted
     5  to their string representation.
     6  
     7  https://github.com/cs3org/reva/pull/2525