Prevents some duplicate key errors when voting on something for the second time in the same action.

application/modules/requests/models/ApprovalActionQueueModel.php

@@ -77,7 +77,7 @@ class Requests_ApprovalActionQueueModel extends Requests_ApprovalActionModel
     public function userMadeDecisions($requests, $requestDecisions)
     {
         $user = Auth_UserModel::findCurrentUser();
-        $votes = Requests_ApproverVoteModel::findUsersVotesForRequests($user, $requests);
+        $votes = Requests_ApproverVoteModel::findUsersVotesForRequests($user, $requests, $this);
         $requestHistories = Requests_ApprovalHistoryModel::findByRequest($requests);
         foreach ($requests as $request) {
         	$histories = $requestHistories[$request->getId()];

application/modules/requests/models/ApproverVoteModel.php

@@ -34,7 +34,7 @@ class Requests_ApproverVoteModel extends Unl_Model
         }
     }
 
-    static public function findUsersVotesForRequests(Auth_UserModel $user, $requests)
+    static public function findUsersVotesForRequests(Auth_UserModel $user, $requests, $approvalAction = null)
     {
         $db = Zend_Registry::get('db');
 
@@ -49,6 +49,9 @@ class Requests_ApproverVoteModel extends Unl_Model
             $select->where('a.request = ?', $requests->getId());
         }
         $select->where('user = ?', $user->getId());
+        if ($approvalAction instanceof Requests_ApprovalActionModel) {
+        	$select->where('approvalAction = ?', $approvalAction->getId());
+        }
         $select->order('time');
 
         $records = $db->query($select)->fetchAll();