diff --git a/module/branch/control.php b/module/branch/control.php
index 8ee38ee492..a7e98d6937 100644
--- a/module/branch/control.php
+++ b/module/branch/control.php
@@ -217,6 +217,8 @@ class branch extends control
         if(empty($product) or $product->type == 'normal') die();
 
         $branches = $this->branch->getPairs($productID, $param);
+
+        /* Remove unlinked branches of the project. */
         if($projectID)
         {
             $projectProducts = $this->loadModel('project')->getBranchesByProject($projectID);
diff --git a/module/execution/control.php b/module/execution/control.php
index 487489c04b..145a068a2a 100644
--- a/module/execution/control.php
+++ b/module/execution/control.php
@@ -1275,25 +1275,17 @@ class execution extends control
         $productPlans = array();
         if($copyExecutionID)
         {
-            $copyExecution   = $this->dao->select('*')->from(TABLE_EXECUTION)->where('id')->eq($copyExecutionID)->fetch();
-            $name            = $copyExecution->name;
-            $code            = $copyExecution->code;
-            $team            = $copyExecution->team;
-            $acl             = $copyExecution->acl;
-            $whitelist       = $copyExecution->whitelist;
-            $projectID       = $copyExecution->project;
-            $products        = $this->execution->getProducts($copyExecutionID);
-            $branches        = $this->project->getBranchesByProject($copyExecutionID);
-            $plans           = $this->loadModel('productplan')->getGroupByProduct(array_keys($products));
-            $projectProducts = $this->loadModel('project')->getBranchesByProject($projectID);
-            $branchGroups    = $this->loadModel('branch')->getByProducts(array_keys($products), 'noclosed');
-            foreach($branchGroups as $productID => $branchPairs)
-            {
-                foreach($branchPairs as $branchID => $branchName)
-                {
-                    if(!isset($projectProducts[$productID][$branchID])) unset($branchGroups[$productID][$branchID]);
-                }
-            }
+            $copyExecution = $this->dao->select('*')->from(TABLE_EXECUTION)->where('id')->eq($copyExecutionID)->fetch();
+            $name          = $copyExecution->name;
+            $code          = $copyExecution->code;
+            $team          = $copyExecution->team;
+            $acl           = $copyExecution->acl;
+            $whitelist     = $copyExecution->whitelist;
+            $projectID     = $copyExecution->project;
+            $products      = $this->execution->getProducts($copyExecutionID);
+            $branches      = $this->project->getBranchesByProject($copyExecutionID);
+            $plans         = $this->loadModel('productplan')->getGroupByProduct(array_keys($products));
+            $branchGroups  = $this->execution->getBranchByProduct(array_keys($products), $projectID);
 
             $linkedBranches = array();
             foreach($products as $productID => $product)
@@ -1401,7 +1393,7 @@ class execution extends control
         $this->view->whitelist           = $whitelist;
         $this->view->copyExecutionID     = $copyExecutionID;
         $this->view->branchGroups        = isset($branchGroups) ? $branchGroups : $this->loadModel('branch')->getByProducts(array_keys($products), 'noclosed');
-        $this->view->poUsers                 = $poUsers;
+        $this->view->poUsers             = $poUsers;
         $this->view->pmUsers             = $pmUsers;
         $this->view->qdUsers             = $qdUsers;
         $this->view->rdUsers             = $rdUsers;
@@ -1502,15 +1494,7 @@ class execution extends control
         $branches         = $this->project->getBranchesByProject($executionID);
         $plans            = $this->productplan->getGroupByProduct(array_keys($linkedProducts));
         $executionStories = $this->project->getStoriesByProject($executionID);
-        $projectProducts  = $this->loadModel('project')->getBranchesByProject($execution->project);
-        $branchGroups     = $this->loadModel('branch')->getByProducts(array_keys($linkedProducts), 'noclosed');
-        foreach($branchGroups as $productID => $branchPairs)
-        {
-            foreach($branchPairs as $branchID => $branchName)
-            {
-                if(!isset($projectProducts[$productID][$branchID])) unset($branchGroups[$productID][$branchID]);
-            }
-        }
+        $branchGroups     = $this->execution->getByProducts(array_keys($linkedProducts), $execution->project);
 
         /* If the story of the product which linked the execution, you don't allow to remove the product. */
         $unmodifiableProducts = array();
@@ -2292,15 +2276,7 @@ class execution extends control
         $linkedBranches   = array();
         $branches         = $this->project->getBranchesByProject($executionID);
         $executionStories = $this->project->getStoriesByProject($executionID);
-        $projectProducts  = $this->loadModel('project')->getBranchesByProject($execution->project);
-        $branchGroups     = $this->loadModel('branch')->getByProducts(array_keys($linkedProducts), 'noclosed');
-        foreach($branchGroups as $productID => $branchPairs)
-        {
-            foreach($branchPairs as $branchID => $branchName)
-            {
-                if(!isset($projectProducts[$productID][$branchID])) unset($branchGroups[$productID][$branchID]);
-            }
-        }
+        $branchGroups     = $this->execution->getBranchByProduct(array_keys($linkedProducts), $execution->project);
 
         /* If the story of the product which linked the execution, you don't allow to remove the product. */
         $unmodifiableProducts = array();
diff --git a/module/execution/model.php b/module/execution/model.php
index 1e7529bed9..54c37ce3e8 100644
--- a/module/execution/model.php
+++ b/module/execution/model.php
@@ -1655,6 +1655,28 @@ class executionModel extends model
         return $query->fetchAll('id');
     }
 
+    /**
+     * Get branch pairs by product id list.
+     *
+     * @param  array  $products
+     * @param  int    $projectID
+     * @access public
+     * @return array
+     */
+    public function getBranchByProduct($products, $projectID)
+    {
+        $branchGroups    = $this->loadModel('branch')->getByProducts($products, 'noclosed');
+        $projectProducts = $this->loadModel('project')->getBranchesByProject($projectID);
+        foreach($branchGroups as $productID => $branchPairs)
+        {
+            foreach($branchPairs as $branchID => $branchName)
+            {
+                if(!isset($projectProducts[$productID][$branchID])) unset($branchGroups[$productID][$branchID]);
+            }
+        }
+        return $branchGroups;
+    }
+
     /**
      * Get ordered executions.
      *