Merge pull request #51 from Siora/patch-2

fix PHP error in file wcf/lib/acp/form/UsersMassProcessingForm.class.php (

diff --cc wcfsetup/install/files/lib/acp/form/UsersMassProcessingForm.class.php
index 9ec3ccce25de3459cec2359768a4d1001a943514,a5c92b49667998a8580a222ce1c2642b040ccb34..6a8e783d841e416816624d8684852d79a3dbd6f4
--- 1/wcfsetup/install/files/lib/acp/form/UsersMassProcessingForm.class.php
--- 2/wcfsetup/install/files/lib/acp/form/UsersMassProcessingForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UsersMassProcessingForm.class.php
@@@ -63,16 -63,16 +63,23 @@@ class UsersMassProcessingForm extends U
         * @var wcf\system\database\condition\PreparedStatementConditionBuilder
         */
        public $conditions = null;
+ 
+         /**
+        * Options of the active category.
+        * 
+        * @var array
+        */
+       public $activeOptions = array();
        
        /**
 -       * @see wcf\form\Form::readFormParameters()
 +       * Options of the active category.
 +       * 
 +       * @var array
 +       */
 +      public $activeOptions = array();
 +      
 +      /**
 +       * @see wcf\form\IForm::readFormParameters()
         */
        public function readFormParameters() {
                parent::readFormParameters();