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

[Juri Linkov]

> However, I'm not sure I understand what happens when I edit the
> kill-ring entry before hitting RET, which gets it inserted.  Is the
> edited entry added to the kill-ring?  It looks like it isn't, because
> the next C-y inserts the last kill-ring entry, i.e. neither the
> original entry I edited nor the edited entry actually inserted.  Why
> does the kill-ring-yank-pointer gets reset to the front of the
> kill-ring in this case?

After inserting the edited entry it resets the kill-ring-yank-pointer
for the same reason why the kill-ring-yank-pointer gets reset
when a new entry gets added to the kill-ring after C-w,
i.e. like this line in 'kill-new':

  (setq kill-ring-yank-pointer kill-ring)