github.com/cs3org/reva/v2@v2.27.7/changelog/1.5.0_2021-01-12/ocs-lookup-user-by-username.md (about)

     1  Bugfix: when sharing via ocs look up user by username
     2  
     3  The ocs api returns usernames when listing share recipients, so the lookup when creating the share needs to search the usernames and not the userid.
     4  
     5  https://github.com/cs3org/reva/pull/1281