diff --git a/soong_workflow/models/soong_workflow_node.py b/soong_workflow/models/soong_workflow_node.py
index 4db721d1c..2e328971a 100644
--- a/soong_workflow/models/soong_workflow_node.py
+++ b/soong_workflow/models/soong_workflow_node.py
@@ -88,7 +88,7 @@ class SoongWorkflowNode(models.Model):
     is_carbon_copy = fields.Boolean(string="抄送/传阅")
     is_apostille = fields.Boolean(string="加签", default=False)
     employee_ids = fields.Many2many('hr.employee', string='抄送/传阅人员')
-    is_end = fields.Boolean(string="结束")
+    is_end = fields.Boolean(string="结束", default=False)
 
     @api.onchange("is_apostille")
     def onchange_is_apostille(self):
@@ -116,7 +116,8 @@ class SoongWorkflowNode(models.Model):
                     })
                 ]
             else:
-                record.button_ids.filtered(lambda r: r.name in ["加签", "加签确认"]).unlink()
+                remove_ids = record.button_ids.filtered(lambda r: r.name in ["加签", "加签确认"])
+                record.button_ids = [(3, remove_id.id) for remove_id in remove_ids]
 
     @api.onchange("is_end")
     def onchange_is_end(self):
@@ -137,7 +138,8 @@ class SoongWorkflowNode(models.Model):
                 ]
             else:
                 record.res_bg_color = DEFAULT_BG_COLOR
-                record.button_ids.filtered(lambda r: r.name in ["结束"]).unlink()
+                remove_ids = record.button_ids.filtered(lambda r: r.name in ["结束"])
+                record.button_ids = [(3, remove_id.id) for remove_id in remove_ids]
 
 
     @api.model_create_multi