diff -urN ../roundcubemail-1.4.3.orig/program/lib/Roundcube/rcube_ldap.php ./program/lib/Roundcube/rcube_ldap.php
--- ../roundcubemail-1.4.3.orig/program/lib/Roundcube/rcube_ldap.php	2020-02-19 22:55:57.000000000 +0200
+++ ./program/lib/Roundcube/rcube_ldap.php	2020-05-10 17:25:36.145313000 +0300
@@ -1531,7 +1531,8 @@
         if ($this->is_group_entry($rec)) {
             $out['_type']     = 'group';
             $out['readonly']  = true;
-            $fieldmap['name'] = $this->group_data['name_attr'] ?: $this->prop['groups']['name_attr'];
+//            $fieldmap['name'] = $this->group_data['name_attr'] ?: $this->prop['groups']['name_attr'];
+            $fieldmap['name'] = $this->group_data['name_attr'] ?: ($this->prop['groups']['name_attr'] ? $this->prop['groups']['name_attr'] : $fieldmap['name']);
         }
 
         // assign object type from object class mapping