bug#12218: 24.2.50; vc-ediff: Pressing `n' moves focus away from ediff control panel

[martin rudalics]

> I am debian squeeze running Emacs from trunk (bzr version is visible in
> the attached screenshot). Emacs is launched like this:
>
>    ~/src/emacs/trunk/src/emacs  --debug-init -Q
>
> `ediff-grab-mouse' is at it's default value of t.

And what happens if you set it to nil (that's what I use for whatever
reason).  IIRC ediff's mouse grabbing code is very convoluted and partly
dead.

> I am attaching a screenshot of my desktop.
>
> I don't know whether the diff file has any bearing on the behaviour.
> The register.el on display is the one obtained by applying the
> bug12389.diff.
>
> This bug is bit of an annoyance.  I am happy you are lookng in to it.

I'm afraid I can't be of much help here.  I don't put the control panel
in an extra frame; I use `ediff-setup-windows-plain'.

martin