From d49ede9ac414c734d65f89cebd86e70ad2cb1156 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thibault=20Delavall=C3=A9e?= <tde@odoo.com>
Date: Thu, 22 Sep 2016 10:35:38 +0200
Subject: [PATCH] [FIX] project_issue: fix migration issue leading to crash in
 duplicate

---
 addons/project_issue/models/project_issue.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/addons/project_issue/models/project_issue.py b/addons/project_issue/models/project_issue.py
index e63d3b16f28..2eec0b49aa6 100644
--- a/addons/project_issue/models/project_issue.py
+++ b/addons/project_issue/models/project_issue.py
@@ -133,7 +133,7 @@ class ProjectIssue(models.Model):
     def _onchange_task_id(self):
         self.user_id = self.task_id.user_id
 
-    @api.one
+    @api.multi
     def copy(self, default=None):
         if default is None:
             default = {}