class Bundler::RubygemsIntegration

def replace_refresh

we don't #reflesh, so stub it out.
Because Bundler has a static view of what specs are available,

def replace_refresh
  gem_class = (class << Gem ; self ; end)
  gem_class.send(:remove_method, :refresh)
  gem_class.send(:define_method, :refresh) { }
end