ruby-on-rails - 重命名模型后 Rails 无法识别键

Question

我刚刚使用以下命令将我的表Client重命名为Person ：

class RenameClientsToPeople < ActiveRecord::Migration
  def change
    rename_table :clients, :people
  end
end

然后我小心地从client到person以及从clients到people重命名所有实例、文件名和外键（感谢 Veraticus）。但由于某种原因，我仍然会收到这样的错误：

SQLite3::SQLException: no such column: people.person_id: SELECT COUNT(*) FROM "projects" INNER JOIN "people" ON "projects"."person_id" = "people"."person_id" WHERE "people"."user_id" = 1

为什么 Rails 不能识别新的主键？