Some related nextcloud issues…
- https://github.com/nextcloud/server/issues/6719
- https://github.com/nextcloud/server/issues/5573
- https://github.com/nextcloud/server/issues/12319
My tests were done on NethServer 7.5 with Nextcloud 14.0.3… DisplayName not updated in database and contact list was fixed in Nextcloud 14.0.4 (available for NethServer 7.6.1810 beta):
Upgraded a test machine and the changes (customized action) worked after forcing a change in nextcloud’s ldap settings (like putting back the old value in 2nd display name and removing it afterwards).