Re: xref-query-replace

[Eli Zaretskii]

> Cc: address@hidden
> From: Dmitry Gutov <address@hidden>
> Date: Sat, 9 Jan 2016 23:35:49 +0300
> 
> On 01/09/2016 11:27 PM, Eli Zaretskii wrote:
> 
> > Or maybe just let it work in all XREF buffers, and trust the user that
> > she knows what she is doing?
> 
> I'd rather not.
> 
> And, like I said, there are technical reasons for this to be hard to 
> support.

I don't really understand why.  But if you insist, the only way to
explain this is to explicitly mention all the commands that produce
"good" XREF buffers in the error message.  Yes, it will be a long
one.  But that's not a catastrophe.