Restore require of 'active_record/fixtures' for Rake tasks that use them

activerecord/lib/active_record/railties/databases.rake

@@ -245,6 +245,8 @@ namespace :db do
   namespace :fixtures do
     desc "Load fixtures into the current environment's database.  Load specific fixtures using FIXTURES=x,y. Load from subdirectory in test/fixtures using FIXTURES_DIR=z. Specify an alternative path (eg. spec/fixtures) using FIXTURES_PATH=spec/fixtures."
     task :load => :environment do
+      require 'active_record/fixtures'
+
       ActiveRecord::Base.establish_connection(Rails.env)
       base_dir = ENV['FIXTURES_PATH'] ? File.join(Rails.root, ENV['FIXTURES_PATH']) : File.join(Rails.root, 'test', 'fixtures')
       fixtures_dir = ENV['FIXTURES_DIR'] ? File.join(base_dir, ENV['FIXTURES_DIR']) : base_dir
@@ -256,6 +258,8 @@ namespace :db do
 
     desc "Search for a fixture given a LABEL or ID. Specify an alternative path (eg. spec/fixtures) using FIXTURES_PATH=spec/fixtures."
     task :identify => :environment do
+      require 'active_record/fixtures'
+
       label, id = ENV["LABEL"], ENV["ID"]
       raise "LABEL or ID required" if label.blank? && id.blank?