From eb41a29bac7fb1d2198edbf3d75ac0fc04e37fb9 Mon Sep 17 00:00:00 2001
From: holan20180123 <liyuchun@easycorp.ltd>
Date: Mon, 19 Jul 2021 10:50:24 +0800
Subject: [PATCH]  * Fix bug #13680.

---
 module/project/control.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/module/project/control.php b/module/project/control.php
index 4e88286e9a..604e4994a2 100644
--- a/module/project/control.php
+++ b/module/project/control.php
@@ -416,7 +416,6 @@ class project extends control
                 ->where('t1.project')->eq($projectID)
                 ->andWhere('t2.plan')->in(array_keys($oldPlans))
                 ->fetchAll('story');
-            $diffResult = array_diff($oldPlans, $_POST['plans']);
 
             $changes = $this->project->update($projectID);
             if(dao::isError()) return $this->send(array('result' => 'fail', 'message' => dao::getError()));
@@ -428,6 +427,7 @@ class project extends control
             }
 
             /* Link the plan stories. */
+            $diffResult = array_diff($oldPlans, $_POST['plans']);
             if(!empty($_POST['plans']) and !empty($diffResult))
             {
                 $this->loadModel('productplan')->linkProject($projectID, $_POST['plans'], $oldPlanStories);