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

[Juri Linkov]

> In the following use case:
>
>   M-y
>   <type something>
>   TAB                     (1)
>   <edit the completion>   (2)
>   RET
>   C-y
>
> the last C-y inserts neither the unedited completion in (1) nor the
> edited one in (2).  It inserts something else.  It should insert one
> of these two, IMO, otherwise this behaves very different from
>
>   C-y
>   M-y
>   M-y
>   ...
>   C-y

'C-y M-y M-y ... C-y' has no ability to edit the previous string,
so these cases are not comparable.