Fixes: #2574 when saving a windows workstations the uid is not stored

samba/admin/systems/samba/class_winstationGeneric.inc

@@ -269,7 +269,7 @@ class winstationGeneric extends simplePlugin
   function compute_dn()
   {
     $this->attributesAccess['uid']->setValue($this->attributesAccess['cn']->getValue());
-    return 'uid='.$this->uid.','.get_winstations_ou().$this->base;
+    return 'uid='.$this->attributesAccess['uid']->getValue().','.get_winstations_ou().$this->base;
   }
 }
 ?>