# File lib/r10k/git/rugged/bare_repository.rb, line 64
  def wipe_branches
    backup_branches = {}
    with_repo do |repo|
      repo.branches.each do |branch|
        if !branch.head?
          backup_branches[branch.name] = branch.target_id
          repo.branches.delete(branch)
        end
      end
    end
    backup_branches
  end