bug#56747: 28.1.90; Char fold search doesn't work

[Eli Zaretskii]

> From: Damien Cassou <damien@cassou.me>
> Date: Sun, 24 Jul 2022 19:27:35 +0200
> 
> 
> 1. emacs -Q
> 2. (insert "a⒜℀a")
> 3. C-s a M-s '
> 4. The echo area should say "Pending char-fold I-search"
> 
> Expected: Pressing C-s again should find all 4 characters of the
> inserted string as described in the manual: (info "(emacs) Lax Search").

Which part of the manual led you to expect the above behavior?

By default, Emacs only folds "canonically-equivalent" characters, and
those two aren't equivalent to 'a'.  If you want them to be found, you
need to customize the variables described in the manual to add more
variants.

I don't think this is a bug, Emacs is working as intended.