docs: def tag_patches_branch(package, local_patches_branch, patches_branch,
                         force=False, push=False):
      """ Tag the local_patches_branch with this package's NVR. """
      vr = specfile.Spec().get_vr(epoch=False)
      nvr_tag = package + '-' + vr
      tag_cmd = ['tag', nvr_tag, local_patches_branch]
      if force:
          tag_cmd.append('-f')
      git(*tag_cmd)
      if push:
          patches_remote = patches_branch.partition('/')[0]
          git('push', patches_remote, nvr_tag)
      else:
          print('Not pushing tag. Run "git push patches %s" by hand.' % nvr_tag)