1 files changed, 15 insertions, 8 deletions

diff --git a/lib/plugins/authad/auth.php b/lib/plugins/authad/auth.php
index 2d6226706..27a6b229e 100644
--- a/lib/plugins/authad/auth.php
+++ b/lib/plugins/authad/auth.php
@@ -64,8 +64,6 @@ class auth_plugin_authad extends DokuWiki_Auth_Plugin
      */
     protected $pattern = array();
 
-    protected $actualstart = 0;
-
     protected $grpsusers = array();
 
     /**
@@ -460,12 +458,18 @@ class auth_plugin_authad extends DokuWiki_Auth_Plugin
      */
     protected function fillGroupUserArray($filter, $numberOfAdds)
     {
-        $this->grpsusers[$this->filterToString($filter)];
-        $i = 0;
+        if (isset($this->grpsusers[$this->filterToString($filter)])) {
+            $actualstart = count($this->grpsusers[$this->filterToString($filter)]);
+        } else {
+            $this->grpsusers[$this->filterToString($filter)] = [];
+            $actualstart = 0;
+        }
+
+        $i=0;
         $count = 0;
         $this->constructPattern($filter);
         foreach ($this->users as $user => &$info) {
-            if ($i++ < $this->actualstart) {
+            if ($i++ < $actualstart) {
                 continue;
             }
             if ($info === false) {
@@ -476,7 +480,6 @@ class auth_plugin_authad extends DokuWiki_Auth_Plugin
                 if (($numberOfAdds > 0) && (++$count >= $numberOfAdds)) break;
             }
         }
-        $this->actualstart = $i;
         return $count;
     }
 
@@ -495,12 +498,12 @@ class auth_plugin_authad extends DokuWiki_Auth_Plugin
         $adldap = $this->initAdLdap(null);
         if (!$adldap) return array();
 
-        if (!$this->users) {
+        //if (!$this->users) {
             //get info for given user
             $result = $adldap->user()->all(false, $this->constructSearchString($filter));
             if (!$result) return array();
             $this->users = array_fill_keys($result, false);
-        }
+        //}
 
         $i     = 0;
         $count = 0;
@@ -528,6 +531,10 @@ class auth_plugin_authad extends DokuWiki_Auth_Plugin
             if (!isset($this->grpsusers[$this->filterToString($filter)]) ||
                 count($this->grpsusers[$this->filterToString($filter)]) < ($start+$limit)
             ) {
+                if(!isset($this->grpsusers[$this->filterToString($filter)])) {
+                    $this->grpsusers[$this->filterToString($filter)] = [];
+                }
+
                 $this->fillGroupUserArray(
                     $filter,
                     $start+$limit - count($this->grpsusers[$this->filterToString($filter)]) +1