From 3bb38d3358ccbe4dd5e71a51dfd0b5015cb214df Mon Sep 17 00:00:00 2001
From: liuhong <liuhong@easycorp.ltd>
Date: Mon, 9 Jan 2023 01:00:12 +0000
Subject: [PATCH] * Fix bug #31559.

---
 module/productplan/control.php | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/module/productplan/control.php b/module/productplan/control.php
index ab589b4eae..e233505224 100644
--- a/module/productplan/control.php
+++ b/module/productplan/control.php
@@ -758,7 +758,15 @@ class productplan extends control
             $this->productplan->unlinkStory($storyID, $planID);
             $this->loadModel('action')->create('productplan', $planID, 'unlinkstory', '', $storyID);
 
-            return print(js::locate($this->createLink('productplan', 'view', "planID=$planID&type=story"), 'parent'));
+            if($this->session->storyList)
+            {
+                return print(js::locate($this->session->storyList, 'parent'));
+            }
+            else
+            {
+                return print(js::locate($this->createLink('productplan', 'view', "planID=$planID&type=story"), 'parent'));
+            }
+
         }
     }