升级从 2.3.2 到 2.3.6 失败，原因是 discourse assign 插件

支持 安装
4

罪魁祸首在这里：
20191119174425_rename_site_setting_assign_emailer.rb

内容如下：

# frozen_string_literal: true

class RenameSiteSettingAssignEmailer < ActiveRecord::Migration[6.0]
  def up
    execute "UPDATE site_settings
             SET name = 'assign_mailer', value = '#{AssignMailer.levels[:always]}', data_type = #{SiteSettings::TypeSupervisor.types[:enum]}
             WHERE name = 'assign_mailer_enabled' AND value = 't' AND data_type = #{SiteSettings::TypeSupervisor.types[:enum]}"

    execute "UPDATE site_settings
             SET name = 'assign_mailer', value = '#{AssignMailer.levels[:never]}', data_type = #{SiteSettings::TypeSupervisor.types[:enum]}
             WHERE name = 'assign_mailer_enabled' AND value = 'f' AND data_type = #{SiteSettings::TypeSupervisor.types[:enum]}"
  end

  def down
    raise ActiveRecord::IrreversibleMigration
  end
end
```\n我该如何修复这个问题？如果直接在这个文件中修改，当重建开始时，仓库会被重新下载，我的修改会被覆盖吗？