更改：疑修param为index以及新增统计标签下合并请求数量

lib/tasks/upgrade_issue_generate_data.rake

@@ -29,9 +29,13 @@ namespace :upgrade_issue_generate_data do
     puts "____________fix start________________"
     IssuePriority.init_data
     IssueStatus.init_data
+    IssueTag.order(created_at: :desc).find_each do |it| 
+      it.update_column(:issues_count, it.issue_issues.size)
+      it.update_column(:pull_requests_count, it.pull_request_issues.size)
+    end
     IssueTag.where(user_id: nil).destroy_all
     count = 0
-    Project.order(created_at: :desc).find_each do |project| 
+    Project.order(created_on: :desc).find_each do |project| 
       count += 1
       IssueTag.init_data(project.id)
     end