> To summarize, I believe this isn't a very common case, and it is easily
> circumvented with the workaround I gave you. I of course acknowledge
> this bug report as a bug. Maybe you can try making a patch for Emacs
> that fixes it and test it.
Thanks, I’ll look into it some more and submit a patch.
To be honest, it seems that the issue is also exhibited by
completion-pcm-all-completions, so the best place to fix it would be
completion-pcm--hilit-commonality.
Sounds good. I'm adding Stefan Monnier to this conversation
as he is expert in these matters.
João