bug#48478: 28.0.50; yank-from-kill-ring and kill-ring-yank-pointer

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Cc: 48478@debbugs.gnu.org
> Date: Tue, 08 Jun 2021 19:55:16 +0300
> 
> Sorry, I forgot that C-y adds text to the kill-ring.  So I changed
> yank-from-kill-ring to add an edited string to the kill-ring.

Thanks, I therefore finalized the documentation of the new behavior of
M-y.