Change "'<" and "'>" to "v" and ".".

[presuku]

'< and '> are mark of the last selected visual area in the current buffer,
so, search pattern at the first time in the current buffer is different from pattern at the second time.

• first time

  vim ./plugin/asterisk.vim
  :map * <Plug>(asterisk-z*)
  /save_cpo
  zo
  fc
  v2l
  *
  

  • search pattern is \V\<cpo\>

• second time

  Fc
  v2l
  *
  

  • search pattern is \Vcpo\>

[haya14busa]

Thank you for your work @presuku 🏆
I merged it with tiny fix. e4c5391

[presuku]

Thanks for fixing of this issue.
I think that your code is better than mine ✨