bug#23179: 25.0.92; Restore `M-,' to continue etags search

[Dmitry Gutov]

On 04/05/2016 06:56 PM, Eli Zaretskii wrote:

> > The idea is that the other UI should really be a new
> > xref-show-xrefs-function, that's what that variable is there for (you
> > can make it a defcustom). It would be better to avoid coupling the two UIs.
>
> If the difference will prove to be more significant, I can see the
> point.

The difference will hopefully increase in the future. And then we'll be 
happy that the user doesn't need to change their customization.

> I thought that if one invokes next-error immediately after xref
> collected the matches, this danger is avoided.  Isn't that true?

Not necessarily (e.g. if you have a Grep buffer visible). And a 
next-error-function-capable buffer can come up after one of the 
next-error invocations.