Re: [PATCH] `completing-read`: Add `group-function` support to completion metadata (REVISED PATCH VERSION 2)

[Juri Linkov]

> I attached the patch which splits `completion--insert-strings` into a
> function per completions format and adds group title support for the
> vertical and horizontal format.

Thanks, I tested the vertical and horizontal format,
and the horizontal format is displayed nicely, but I expected
that in the vertical format completions inside every group
to be arranged the same way as in horizontal format, e.g.
everything is fine in the horizontal format:

--- group1 ---
1 2
3 4
--- group2 ---
5 6
7 8

whereas the vertical format is expected to be like:

--- group1 ---
1 3
2 4
--- group2 ---
5 7
6 8

But with the latest patch it's:

--- group1 ---   6
1                7
2                8
3                --- group3 ---
4                9
--- group2 ---   10
5                11
                 12