Apply user-spefici replacements to group's base_dn property (#1489779)

program/lib/Roundcube/rcube_ldap.php

@@ -377,10 +377,11 @@ class rcube_ldap extends rcube_addressbook
                 // replace placeholders in filter settings
                 if (!empty($this->prop['filter']))
                     $this->prop['filter'] = strtr($this->prop['filter'], $replaces);
-                if (!empty($this->prop['groups']['filter']))
-                    $this->prop['groups']['filter'] = strtr($this->prop['groups']['filter'], $replaces);
-                if (!empty($this->prop['groups']['member_filter']))
-                    $this->prop['groups']['member_filter'] = strtr($this->prop['groups']['member_filter'], $replaces);
+
+                foreach (array('base_dn','filter','member_filter') as $k) {
+                    if (!empty($this->prop['groups'][$k]))
+                        $this->prop['groups'][$k] = strtr($this->prop['groups'][$k], $replaces);
+                }
 
                 if (!empty($this->prop['group_filters'])) {
                     foreach ($this->prop['group_filters'] as $i => $gf) {