User - resolve posix groups for all member groups

app/models/auth/User.model.js

@@ -194,6 +194,11 @@ class User extends AuthUser {
         const shell = this.login_shell || this.configs.get('ldap:server.schema.default_shell')
         const domain = this.configs.get('ldap:server.schema.base_dc').split(',').map(x => x.replace('dc=', '')).join('.')
 
+        const group_ids = []
+        for ( const group of await this.groups() ) {
+            group_ids.push(await group.get_gid_number())
+        }
+
         const ldap_data = {
             uid: this.uid.toLowerCase(),
             uuid: this.uuid,
@@ -208,7 +213,7 @@ class User extends AuthUser {
             objectGuid: this.uuid,
             objectguid: this.uuid,
             uidNumber: uid_number,
-            gidNumber: uid_number,
+            gidNumber: group_ids.map(x => String(x)),
             loginShell: shell,
             homeDirectory: `/home/${this.uid}@${domain}`
         }