修复作业的创建者会随着更新变动

app/controllers/bids_controller.rb

@@ -868,7 +868,7 @@ class BidsController < ApplicationController
     @bid.reward_type = 3
     @bid.deadline = params[:bid][:deadline]
     @bid.budget = 0
-    @bid.author_id = User.current.id
+    #@bid.author_id = User.current.id
     @bid.commit = 0
     @bid.homework_type = 1
     @bid.save_attachments(params[:attachments] || (params[:bid] && params[:bid][:uploads]))