bug#44611: Prefix arg for xref-goto-xref

[Juri Linkov]

>> > This works both ways: if you want TAB to do something other than its
>> > default, you can rebind it for you, right?
>>
>> This is not about my personal preferences.
>
> Your original explanation of the rationale was that you always press
> TAB because you are used to it in Grep buffers.

Not just me, all users that expect grep keybindings in grep-like buffers.

>> > I didn't suggest unbinding TAB, I suggested to leave its current
>> > binding as it was in Emacs 27 and older.
>>
>> This would be the worst thing to do.
>
> It sounds like no compromise I suggest is acceptable.  then I don't
> know how to solve this disagreement.

There is one solution currently discussed on emacs-devel: to add
a user option that defines whether to use old keybindings or
to use new keybindings that are more consistent particularly
in xref with grep-mode.