diff --git a/.gitignore b/.gitignore
index a1f5f7e76..9d33b264c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@
 /config/configuration.yml
 /config/additional_environment.rb
 /config/oneapm.yml
+/config/environments/production.rb
 
 
 /files/*
diff --git a/app/models/at_message.rb b/app/models/at_message.rb
index 2212ef07e..10afe3e79 100644
--- a/app/models/at_message.rb
+++ b/app/models/at_message.rb
@@ -99,7 +99,7 @@ class AtMessage < ActiveRecord::Base
         else
           type = "journal_for_message"
           detail_id = topic.id
-          detail_title = at_message.notes
+          detail_title = topic.notes.nil? ? "" : topic.notes
         end
       else
         status = -1
diff --git a/lib/plugins/acts_as_attachable/lib/acts_as_attachable.rb b/lib/plugins/acts_as_attachable/lib/acts_as_attachable.rb
index 20bc0a7ad..acfc28c41 100644
--- a/lib/plugins/acts_as_attachable/lib/acts_as_attachable.rb
+++ b/lib/plugins/acts_as_attachable/lib/acts_as_attachable.rb
@@ -219,11 +219,7 @@ module Redmine
 
               if a && !attachment['is_public_checkbox']
                 # 考虑到更新操作，所以全部设置为公开，私有项目、课程是不能访问的
-                if is_public
-                  a.is_public = true
-                else
-                  a.is_public = false
-                end
+                a.is_public = true
               elsif a && attachment['is_public_checkbox']
                 a.is_public = true
               end