pinned_requirement

# File lib/rubygems/request_set/lockfile.rb, line 512
  def pinned_requirement name # :nodoc:
    spec = @set.sets.select { |set|
      Gem::Resolver::GitSet    === set or
        Gem::Resolver::VendorSet === set
    }.map { |set|
      set.specs[name]
    }.compact.first

    spec.version
  end