Problem with rails + rspec + spring + eager_load

How to reproduce?

clone this repo
bin/rails db:migrate RAILS_ENV=test
bin/rspec - should pass
bin/rspec - should pass again
modify file app/models/user.rb (for example add line with comment)
bin/rspec - should fail with message "user_spec.rb:3:in `<top (required)>': uninitialized constant User (NameError)"

Name		Name	Last commit message	Last commit date
Latest commit History 3 Commits
app		app
bin		bin
config		config
db		db
lib		lib
log		log
public		public
spec		spec
test		test
tmp		tmp
vendor/assets		vendor/assets
.gitignore		.gitignore
.rspec		.rspec
Gemfile		Gemfile
Gemfile.lock		Gemfile.lock
README.md		README.md
Rakefile		Rakefile
config.ru		config.ru

radarek/rails_rspec_spring_eager_load_bug