bug#73387: 30.0.90; C-x v v in diff-mode doesn't work after C-c C-n

[Sean Whitton <spwhitton@spwhitton.name>]

Hello,

On Thu 03 Oct 2024 at 02:07pm +03, Eli Zaretskii wrote:

> Maybe so, but I'd still would like to hear the rationale for telling
> the user "Cannot commit patch when narrowed; consider 'widen'".  If
> indeed we "cannot commit" in this case, signaling an error is TRT, and
> replacing that with a message is not, because it will do what you
> claim in the message you cannot.

Okay.  I do agree with you that the manual should state this limitation.
This is what it says right now:

    This command does not work in a narrowed buffer because deleting
    hunks safely requires access to the file headers.

So, the only difference from what you wrote is that it doesn't tell the
user they *mustn't*, only that they *can't*.

I think this addresses your concern, but please let me know if not.

-- 
Sean Whitton