BUG 7338 User profile "Replaced by" doesn't work when PM derivate a case. SLOVED

- The user A will be on vacation, then I update A's profile and set "Replaced by" to user B, set "Status" as Inactive or On vacation.
- Adjustment to the user to derivate.

workflow/engine/classes/model/Users.php

@@ -398,6 +398,20 @@ public function userExists($UsrUid)
 
     return $result;
   }
+
+    public function userVacation($UsrUid = "")
+    {
+        $aFields = array();
+        do {
+            if ($UsrUid != ""){
+                $aFields = $this->load($UsrUid);
+                $UsrUid = $aFields['USR_REPLACED_BY'];
+            } else {
+                break;
+            }
+        } while ($aFields['USR_STATUS'] != 'ACTIVE');
+        return $aFields;
+    }
 } // Users
 
 ?>