module Bundler::FetchMetadata

def matches_current_rubygems?
  # A fallback is included because the original version of the specification
  # API didn't include that field, so some marshalled specs in the index have it
  # set to +nil+.
  @required_rubygems_version ||= _remote_specification.required_rubygems_version || Gem::Requirement.default
  super
end