When a hidden buffer is opened, should it update frecency score?

[delphinus]

frecency.register function is called by BufWinEnter autocmd, but the current build ignores if the buffer is already registered. Should it add scores if the user frequently makes the buffer un-hiddened?

[csessh]

I'd say yes. It seems quite intuitive for it to behave in such a way.

As an user, if I jump in and out a file frequently, I'd expect the score to go up, thus makes the file more accessible in the list of files.