Fixed builds stuck in pending if external nodes is nil

app/controllers/api/v1/jobs_controller.rb

@@ -19,7 +19,7 @@ class Api::V1::JobsController < Api::V1::BaseController
 
       ActiveRecord::Base.transaction do
         if current_user.system?
-          @build_list = build_lists.external_nodes("").first
+          @build_list = build_lists.where(external_nodes: ["", nil]).first
           @build_list ||= build_lists.external_nodes(:everything).first
         else
           @build_list   = build_lists.external_nodes(:owned).for_user(current_user).first

config/environments/production.rb

@@ -2,7 +2,7 @@ Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
   # Code is not reloaded between requests.
-  config.cache_classes = false
+  config.cache_classes = true
 
   # Eager load code on boot. This eager loads most of Rails and
   # your application in memory, allowing both threaded web servers