Lars Ingebrigtsen <larsi@gnus.org> writes:

> I think that's just a bug in Customize -- I think I've now fixed that,
> but it involved some refactoring, so hopefully I didn't break anything.
> But a standard Customize buffer seems to have the same number of things
> that work before/after the rework, so I'm hopeful.  :-)

After the change in wid-edit.el, clicking in the Value Menu button
doesn't display a menu.

I attach a patch to fix it.