Hi
I had next problem
2 jabberr server 17.09, diffrent domains with ldap (domain1.org, domain2.org)
I had create shared groups.If user from domain domain1.org login - mod_vcard show all users from domain domain1.org with nicknames(mod_vcard has config with pushing Last Name from ldap), but group from domain2.org - return only jid.If press on user
same on domain2.org - own user see normal info for domain2.org, but only jid in list for domain1.org