bug#72437: Unexpected behavior when inserting with prefix arg in electric-pair-mode

[Eli Zaretskii <eliz@gnu.org>]

> Cc: 72437@debbugs.gnu.org, Joseph Turner <joseph@breatheoutbreathe.in>
> From: João Távora <joaotavora@gmail.com>
> Date: Fri, 16 Aug 2024 22:22:29 +0100
> 
> On Wed, Aug 14, 2024, 01:57 Stefan Monnier <monnier@iro.umontreal.ca> wrote:
> 
>  Hi João,
> 
>  Do you have a good idea of how to make
> 
>     C-M-SPC C-2 {
> 
>  wrap the selected word within two braces?
> 
> No great ideas no. Does it even work in the non-wrapping case? The intended result is as if the command was
> run twice, no? So maybe try somehow that the whole thing is run twice/thrice/etc...

That's what I suggested, but the result is "{}{}{}{}...", which is not
what was requested.  IOW, what is being requested is NOT what happens
when running this command N times, it should be a special handling of
the numerical argument.