Dave Abrahams <dave@boostpro.com> writes:

> The default, when "comparing currently-highlighted difference regions"
> was to compare the selected region to the entire conflict in the merge
> buffer.

Right, this is pretty useless.

> -    (if (and (ediff-valid-difference-p ediff-current-difference)
> +    (when (and (ediff-valid-difference-p ediff-current-difference)
>  	     (y-or-n-p "Compare currently highlighted difference regions? "))
> -	(setq use-current-diff-p t))
> +      (setq use-current-diff-p t)
> +      (if ediff-merge-with-ancestor-job
> +          (setq bufB ediff-ancestor-buffer)))

Would it make sense to ask about ancestor vs merge buffer even before
the "currently highlighted" query?  I don't quite see why those two
should be tied together.  Although with the patch below, it might be too
many queries, perhaps it's better to only ask when given a prefix arg or
something.