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

- Add a limit, to prevent a infinite bucle (100 or 200)
- Counter added if infinite loop

workflow/engine/classes/model/Users.php

@@ -402,13 +402,15 @@ public function userExists($UsrUid)
     public function userVacation($UsrUid = "")
     {
         $aFields = array();
+        $cnt = 0;
         do {
-            if ($UsrUid != ""){
+            if ($UsrUid != "" && $cnt < 100) {
                 $aFields = $this->load($UsrUid);
                 $UsrUid = $aFields['USR_REPLACED_BY'];
             } else {
                 break;
             }
+            $cnt++;
         } while ($aFields['USR_STATUS'] != 'ACTIVE');
         return $aFields;
     }