修复

lib/tasks/upgrade_issue_generate_data.rake

@@ -30,8 +30,7 @@ namespace :upgrade_issue_generate_data do
     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)
+      it.reset_counter_field
     end
     IssueTag.where(user_id: nil).destroy_all
     count = 0